Import tzdata 2017c
Changes: https://mm.icann.org/pipermail/tz-announce/2017-October/000047.html MFC after: 2 days
This commit is contained in:
Philip Paeps
commit
8d7edd1726
@ -5,20 +5,26 @@ change timekeeping rules erratically and sometimes with little
|
||||
warning, the data entries do not cover all of civil time before
|
||||
1970, and undoubtedly errors remain in the code and data. Feel
|
||||
free to fill gaps or fix mistakes, and please email improvements
|
||||
to tz@iana.org for use in the future.
|
||||
to tz@iana.org for use in the future. In your email, please give
|
||||
reliable sources that reviewers can check.
|
||||
|
||||
-----
|
||||
|
||||
Developers can contribute technical changes to the source code and
|
||||
data as follows.
|
||||
|
||||
To email small changes, please run a POSIX shell command like
|
||||
'diff -u old/europe new/europe >myfix.patch', and attach
|
||||
myfix.patch to the email.
|
||||
|
||||
For more-elaborate changes, please read the Theory file and browse
|
||||
the mailing list archives <http://mm.icann.org/pipermail/tz/> for
|
||||
examples of patches that tend to work well. Ideally, additions to
|
||||
For more-elaborate changes, please read the theory.html file and browse
|
||||
the mailing list archives <https://mm.icann.org/pipermail/tz/> for
|
||||
examples of patches that tend to work well. Additions to
|
||||
data should contain commentary citing reliable sources as
|
||||
justification.
|
||||
justification. Citations should use https: URLs if available.
|
||||
|
||||
Please submit changes against either the latest release in
|
||||
<ftp://ftp.iana.org/tz/> or the master branch of the development
|
||||
<https://www.iana.org/time-zones> or the master branch of the development
|
||||
repository. If you use Git the following workflow may be helpful:
|
||||
|
||||
* Copy the development repository.
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
With a few exceptions, all files in the tz code and data (including
|
||||
this one) are in the public domain. The exceptions are date.c,
|
||||
newstrftime.3, and strftime.c, which contain material derived from BSD
|
||||
and which use the BSD 3-clause license.
|
||||
Unless specified below, all files in the tz code and data (including
|
||||
this LICENSE file) are in the public domain.
|
||||
|
||||
If the files date.c, newstrftime.3, and strftime.c are present, they
|
||||
contain material derived from BSD and use the BSD 3-clause license.
|
||||
|
||||
@ -49,6 +49,7 @@ TOPDIR= /usr/local
|
||||
# "Compiled" time zone information is placed in the "TZDIR" directory
|
||||
# (and subdirectories).
|
||||
# Use an absolute path name for TZDIR unless you're just testing the software.
|
||||
# TZDIR_BASENAME should not contain "/" and should not be ".", ".." or empty.
|
||||
|
||||
TZDIR_BASENAME= zoneinfo
|
||||
TZDIR= $(TOPDIR)/etc/$(TZDIR_BASENAME)
|
||||
@ -75,7 +76,7 @@ LIBDIR= $(TOPDIR)/lib
|
||||
# If you want only POSIX time, with time values interpreted as
|
||||
# seconds since the epoch (not counting leap seconds), use
|
||||
# REDO= posix_only
|
||||
# below. If you want want only "right" time, with values interpreted
|
||||
# below. If you want only "right" time, with values interpreted
|
||||
# as seconds since the epoch (counting leap seconds), use
|
||||
# REDO= right_only
|
||||
# below. If you want both sets of data available, with leap seconds not
|
||||
@ -92,6 +93,24 @@ LIBDIR= $(TOPDIR)/lib
|
||||
|
||||
REDO= posix_right
|
||||
|
||||
# To install data in text form that has all the information of the binary data,
|
||||
# (optionally incorporating leap second information), use
|
||||
# TZDATA_TEXT= tzdata.zi leapseconds
|
||||
# To install text data without leap second information (e.g., because
|
||||
# REDO='posix_only'), use
|
||||
# TZDATA_TEXT= tzdata.zi
|
||||
# To avoid installing text data, use
|
||||
# TZDATA_TEXT=
|
||||
|
||||
TZDATA_TEXT= leapseconds tzdata.zi
|
||||
|
||||
# For backward-compatibility links for old zone names, use
|
||||
# BACKWARD= backward pacificnew
|
||||
# To omit these links, use
|
||||
# BACKWARD=
|
||||
|
||||
BACKWARD= backward pacificnew
|
||||
|
||||
# If you want out-of-scope and often-wrong data from the file 'backzone', use
|
||||
# PACKRATDATA= backzone
|
||||
# To omit this data, use
|
||||
@ -99,6 +118,11 @@ REDO= posix_right
|
||||
|
||||
PACKRATDATA=
|
||||
|
||||
# The name of a locale using the UTF-8 encoding, used during self-tests.
|
||||
# The tests are skipped if the name does not appear to work on this system.
|
||||
|
||||
UTF8_LOCALE= en_US.utf8
|
||||
|
||||
# Since "." may not be in PATH...
|
||||
|
||||
YEARISTYPE= ./yearistype
|
||||
@ -106,50 +130,53 @@ YEARISTYPE= ./yearistype
|
||||
# Non-default libraries needed to link.
|
||||
LDLIBS=
|
||||
|
||||
# Add the following to the end of the "CFLAGS=" line as needed.
|
||||
# Add the following to the end of the "CFLAGS=" line as needed to override
|
||||
# defaults specified in the source code. "-DFOO" is equivalent to "-DFOO=1".
|
||||
# -DBIG_BANG=-9999999LL if the Big Bang occurred at time -9999999 (see zic.c)
|
||||
# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
|
||||
# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
|
||||
# -DHAVE_DOS_FILE_NAMES if file names have drive specifiers etc. (MS-DOS)
|
||||
# -DHAVE_GETTEXT=1 if 'gettext' works (e.g., GNU/Linux, FreeBSD, Solaris)
|
||||
# -DHAVE_INCOMPATIBLE_CTIME_R=1 if your system's time.h declares
|
||||
# ctime_r and asctime_r incompatibly with the POSIX standard
|
||||
# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
|
||||
# -DHAVE_INTTYPES_H=1 if you have a pre-C99 compiler with "inttypes.h"
|
||||
# -DHAVE_LINK=0 if your system lacks a link function
|
||||
# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
|
||||
# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
|
||||
# This defaults to 1 if a working localtime_rz seems to be available.
|
||||
# localtime_rz can make zdump significantly faster, but is nonstandard.
|
||||
# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
|
||||
# functions like 'link' or variables like 'tzname' required by POSIX
|
||||
# -DHAVE_STDINT_H=1 if you have a pre-C99 compiler with "stdint.h"
|
||||
# -DHAVE_STRFTIME_L=1 if <time.h> declares locale_t and strftime_l
|
||||
# This defaults to 0 if _POSIX_VERSION < 200809, 1 otherwise.
|
||||
# -DHAVE_STRDUP=0 if your system lacks the strdup function
|
||||
# -DHAVE_SYMLINK=0 if your system lacks the symlink function
|
||||
# -DHAVE_SYS_STAT_H=0 if your compiler lacks a "sys/stat.h"
|
||||
# -DHAVE_SYS_WAIT_H=0 if your compiler lacks a "sys/wait.h"
|
||||
# -DHAVE_TZSET=0 if your system lacks a tzset function
|
||||
# -DHAVE_UNISTD_H=0 if your compiler lacks a "unistd.h" (Microsoft C++ 7?)
|
||||
# -DEPOCH_LOCAL=1 if the 'time' function returns local time not UT
|
||||
# -DDEPRECATE_TWO_DIGIT_YEARS for optional runtime warnings about strftime
|
||||
# formats that generate only the last two digits of year numbers
|
||||
# -DEPOCH_LOCAL if the 'time' function returns local time not UT
|
||||
# -DEPOCH_OFFSET=N if the 'time' function returns a value N greater
|
||||
# than what POSIX specifies, assuming local time is UT.
|
||||
# For example, N is 252460800 on AmigaOS.
|
||||
# -DNO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU=1
|
||||
# if you do not want run time warnings about formats that may cause
|
||||
# year 2000 grief
|
||||
# -Dssize_t=long on ancient hosts that lack ssize_t
|
||||
# -DTHREAD_SAFE=1 to make localtime.c thread-safe, as POSIX requires;
|
||||
# -DHAVE_DECL_ASCTIME_R=0 if <time.h> does not declare asctime_r
|
||||
# -DHAVE_DECL_ENVIRON if <unistd.h> declares 'environ'
|
||||
# -DHAVE_DIRECT_H if mkdir needs <direct.h> (MS-Windows)
|
||||
# -DHAVE_GENERIC=0 if _Generic does not work
|
||||
# -DHAVE_GETTEXT if 'gettext' works (e.g., GNU/Linux, FreeBSD, Solaris)
|
||||
# -DHAVE_INCOMPATIBLE_CTIME_R if your system's time.h declares
|
||||
# ctime_r and asctime_r incompatibly with the POSIX standard
|
||||
# (Solaris when _POSIX_PTHREAD_SEMANTICS is not defined).
|
||||
# -DHAVE_INTTYPES_H if you have a non-C99 compiler with <inttypes.h>
|
||||
# -DHAVE_LINK=0 if your system lacks a link function
|
||||
# -DHAVE_LOCALTIME_R=0 if your system lacks a localtime_r function
|
||||
# -DHAVE_LOCALTIME_RZ=0 if you do not want zdump to use localtime_rz
|
||||
# localtime_rz can make zdump significantly faster, but is nonstandard.
|
||||
# -DHAVE_POSIX_DECLS=0 if your system's include files do not declare
|
||||
# functions like 'link' or variables like 'tzname' required by POSIX
|
||||
# -DHAVE_SNPRINTF=0 if your system lacks the snprintf function
|
||||
# -DHAVE_STDBOOL_H if you have a non-C99 compiler with <stdbool.h>
|
||||
# -DHAVE_STDINT_H if you have a non-C99 compiler with <stdint.h>
|
||||
# -DHAVE_STRFTIME_L if <time.h> declares locale_t and strftime_l
|
||||
# -DHAVE_STRDUP=0 if your system lacks the strdup function
|
||||
# -DHAVE_SYMLINK=0 if your system lacks the symlink function
|
||||
# -DHAVE_SYS_STAT_H=0 if your compiler lacks a <sys/stat.h>
|
||||
# -DHAVE_SYS_WAIT_H=0 if your compiler lacks a <sys/wait.h>
|
||||
# -DHAVE_TZSET=0 if your system lacks a tzset function
|
||||
# -DHAVE_UNISTD_H=0 if your compiler lacks a <unistd.h>
|
||||
# -Dlocale_t=XXX if your system uses XXX instead of locale_t
|
||||
# -Dssize_t=long on hosts like MS-Windows that lack ssize_t
|
||||
# -DTHREAD_SAFE to make localtime.c thread-safe, as POSIX requires;
|
||||
# not needed by the main-program tz code, which is single-threaded.
|
||||
# Append other compiler flags as needed, e.g., -pthread on GNU/Linux.
|
||||
# -Dtime_tz=\"T\" to use T as the time_t type, rather than the system time_t
|
||||
# This is intended for internal use only; it mangles external names.
|
||||
# -DTZ_DOMAIN=\"foo\" to use "foo" for gettext domain name; default is "tz"
|
||||
# -DTZ_DOMAINDIR=\"/path\" to use "/path" for gettext directory;
|
||||
# the default is system-supplied, typically "/usr/lib/locale"
|
||||
# -DTZDEFRULESTRING=\",date/time,date/time\" to default to the specified
|
||||
# DST transitions if the time zone files cannot be accessed
|
||||
# -DUNINIT_TRAP=1 if reading uninitialized storage can cause problems
|
||||
# -DUNINIT_TRAP if reading uninitialized storage can cause problems
|
||||
# other than simply getting garbage data
|
||||
# -DUSE_LTZ=0 to build zdump with the system time zone library
|
||||
# Also set TZDOBJS=zdump.o and CHECK_TIME_T_ALTERNATIVES= below.
|
||||
@ -157,26 +184,27 @@ LDLIBS=
|
||||
# (or some other number) to set the maximum time zone abbreviation length
|
||||
# that zic will accept without a warning (the default is 6)
|
||||
# $(GCC_DEBUG_FLAGS) if you are using recent GCC and want lots of checking
|
||||
GCC_DEBUG_FLAGS = -Dlint -g3 -O3 -fno-common -fstrict-aliasing \
|
||||
-Wall -Wextra \
|
||||
-Wbad-function-cast -Wcast-align -Wdate-time \
|
||||
-Wdeclaration-after-statement \
|
||||
-Wdouble-promotion \
|
||||
-Wformat=2 -Winit-self -Wjump-misses-init \
|
||||
-Wlogical-op -Wmissing-prototypes -Wnested-externs \
|
||||
-Wold-style-definition -Woverlength-strings -Wpointer-arith \
|
||||
-Wshadow -Wstrict-prototypes -Wsuggest-attribute=const \
|
||||
-Wsuggest-attribute=format -Wsuggest-attribute=noreturn \
|
||||
-Wsuggest-attribute=pure -Wtrampolines \
|
||||
-Wundef -Wunused -Wwrite-strings \
|
||||
-Wno-address -Wno-format-nonliteral -Wno-sign-compare \
|
||||
-Wno-type-limits -Wno-unused-parameter
|
||||
#
|
||||
# If you want to use System V compatibility code, add
|
||||
# -DUSG_COMPAT
|
||||
# to the end of the "CFLAGS=" line. This arrange for "timezone" and "daylight"
|
||||
# variables to be kept up-to-date by the time conversion functions. Neither
|
||||
# "timezone" nor "daylight" is described in X3J11's work.
|
||||
# Select instrumentation via "make GCC_INSTRUMENT='whatever'".
|
||||
GCC_INSTRUMENT = \
|
||||
-fsanitize=undefined -fsanitize-address-use-after-scope \
|
||||
-fsanitize-undefined-trap-on-error -fstack-protector
|
||||
GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
|
||||
$(GCC_INSTRUMENT) \
|
||||
-Wall -Wextra \
|
||||
-Walloc-size-larger-than=100000 -Warray-bounds=2 \
|
||||
-Wbad-function-cast -Wcast-align -Wdate-time \
|
||||
-Wdeclaration-after-statement -Wdouble-promotion \
|
||||
-Wformat=2 -Wformat-overflow=2 -Wformat-signedness -Wformat-truncation \
|
||||
-Winit-self -Wjump-misses-init -Wlogical-op \
|
||||
-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
|
||||
-Wold-style-definition -Woverlength-strings -Wpointer-arith \
|
||||
-Wshadow -Wshift-overflow=2 -Wstrict-prototypes -Wstringop-overflow=5 \
|
||||
-Wsuggest-attribute=const -Wsuggest-attribute=format \
|
||||
-Wsuggest-attribute=noreturn -Wsuggest-attribute=pure \
|
||||
-Wtrampolines -Wundef -Wuninitialized -Wunused \
|
||||
-Wvariadic-macros -Wvla -Wwrite-strings \
|
||||
-Wno-address -Wno-format-nonliteral -Wno-sign-compare \
|
||||
-Wno-type-limits -Wno-unused-parameter
|
||||
#
|
||||
# If your system has a "GMT offset" field in its "struct tm"s
|
||||
# (or if you decide to add such a field in your system's "time.h" file),
|
||||
@ -189,6 +217,31 @@ GCC_DEBUG_FLAGS = -Dlint -g3 -O3 -fno-common -fstrict-aliasing \
|
||||
# and define NO_TM_ZONE to suppress any guessing. These two fields are not
|
||||
# required by POSIX, but are widely available on GNU/Linux and BSD systems.
|
||||
#
|
||||
# The next batch of options control support for external variables
|
||||
# exported by tzcode. In practice these variables are less useful
|
||||
# than TM_GMTOFF and TM_ZONE. However, most of them are standardized.
|
||||
# #
|
||||
# # To omit or support the external variable "tzname", add one of:
|
||||
# # -DHAVE_TZNAME=0
|
||||
# # -DHAVE_TZNAME=1
|
||||
# # to the "CFLAGS=" line. "tzname" is required by POSIX 1988 and later.
|
||||
# # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
|
||||
# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
|
||||
# # crashes when combined with some platforms' standard libraries,
|
||||
# # presumably due to memory allocation issues.
|
||||
# #
|
||||
# # To omit or support the external variables "timezone" and "daylight", add
|
||||
# # -DUSG_COMPAT=0
|
||||
# # -DUSG_COMPAT=1
|
||||
# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by
|
||||
# # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later.
|
||||
# # If not defined, the code attempts to guess USG_COMPAT from other macros.
|
||||
# #
|
||||
# # To support the external variable "altzone", add
|
||||
# # -DALTZONE
|
||||
# # to the end of the "CFLAGS=" line; although "altzone" appeared in
|
||||
# # System V Release 3.1 it has not been standardized.
|
||||
#
|
||||
# If you want functions that were inspired by early versions of X3J11's work,
|
||||
# add
|
||||
# -DSTD_INSPIRED
|
||||
@ -226,11 +279,6 @@ GCC_DEBUG_FLAGS = -Dlint -g3 -O3 -fno-common -fstrict-aliasing \
|
||||
# -DALL_STATE
|
||||
# to the end of the "CFLAGS=" line. Storage is obtained by calling malloc.
|
||||
#
|
||||
# If you want an "altzone" variable (a la System V Release 3.1), add
|
||||
# -DALTZONE
|
||||
# to the end of the "CFLAGS=" line.
|
||||
# This variable is not described in X3J11's work.
|
||||
#
|
||||
# NIST-PCTS:151-2, Version 1.4, (1993-12-03) is a test suite put
|
||||
# out by the National Institute of Standards and Technology
|
||||
# which claims to test C and Posix conformance. If you want to pass PCTS, add
|
||||
@ -240,8 +288,8 @@ GCC_DEBUG_FLAGS = -Dlint -g3 -O3 -fno-common -fstrict-aliasing \
|
||||
# If you want strict compliance with XPG4 as of 1994-04-09, add
|
||||
# -DXPG4_1994_04_09
|
||||
# to the end of the "CFLAGS=" line. This causes "strftime" to always return
|
||||
# 53 as a week number (rather than 52 or 53) for those days in January that
|
||||
# before the first Monday in January when a "%V" format is used and January 1
|
||||
# 53 as a week number (rather than 52 or 53) for January days before
|
||||
# January's first Monday when a "%V" format is used and January 1
|
||||
# falls on a Friday, Saturday, or Sunday.
|
||||
|
||||
CFLAGS=
|
||||
@ -265,7 +313,7 @@ ZFLAGS=
|
||||
|
||||
# How to use zic to install tz binary files.
|
||||
|
||||
ZIC_INSTALL= $(ZIC) -y $(YEARISTYPE) -d $(DESTDIR)$(TZDIR) $(LEAPSECONDS)
|
||||
ZIC_INSTALL= $(ZIC) -d $(DESTDIR)$(TZDIR) $(LEAPSECONDS)
|
||||
|
||||
# The name of a Posix-compliant 'awk' on your system.
|
||||
AWK= awk
|
||||
@ -289,6 +337,7 @@ SGML_CATALOG_FILES= \
|
||||
# The name, arguments and environment of a program to validate your web pages.
|
||||
# See <http://openjade.sourceforge.net/doc/> for a validator, and
|
||||
# <https://validator.w3.org/source/> for a validation library.
|
||||
# Set VALIDATE=':' if you do not have such a program.
|
||||
VALIDATE = nsgmls
|
||||
VALIDATE_FLAGS = -s -B -wall -wno-unused-param
|
||||
VALIDATE_ENV = \
|
||||
@ -355,7 +404,7 @@ AR= ar
|
||||
RANLIB= :
|
||||
|
||||
TZCOBJS= zic.o
|
||||
TZDOBJS= zdump.o localtime.o asctime.o
|
||||
TZDOBJS= zdump.o localtime.o asctime.o strftime.o
|
||||
DATEOBJS= date.o localtime.o strftime.o asctime.o
|
||||
LIBSRCS= localtime.c asctime.c difftime.c
|
||||
LIBOBJS= localtime.o asctime.o difftime.o
|
||||
@ -370,33 +419,35 @@ MANTXTS= newctime.3.txt newstrftime.3.txt newtzset.3.txt \
|
||||
time2posix.3.txt \
|
||||
tzfile.5.txt tzselect.8.txt zic.8.txt zdump.8.txt \
|
||||
date.1.txt
|
||||
COMMON= CONTRIBUTING LICENSE Makefile NEWS README Theory version
|
||||
COMMON= calendars CONTRIBUTING LICENSE Makefile \
|
||||
NEWS README theory.html version
|
||||
WEB_PAGES= tz-art.htm tz-how-to.html tz-link.htm
|
||||
DOCS= $(MANS) date.1 $(MANTXTS) $(WEB_PAGES)
|
||||
PRIMARY_YDATA= africa antarctica asia australasia \
|
||||
europe northamerica southamerica
|
||||
YDATA= $(PRIMARY_YDATA) pacificnew etcetera backward
|
||||
YDATA= $(PRIMARY_YDATA) etcetera $(BACKWARD)
|
||||
NDATA= systemv factory
|
||||
TDATA= $(YDATA) $(NDATA)
|
||||
ZONETABLES= zone1970.tab zone.tab
|
||||
TABDATA= iso3166.tab leapseconds $(ZONETABLES)
|
||||
TABDATA= iso3166.tab $(TZDATA_TEXT) $(ZONETABLES)
|
||||
LEAP_DEPS= leapseconds.awk leap-seconds.list
|
||||
DATA= $(YDATA) $(NDATA) backzone $(TABDATA) \
|
||||
leap-seconds.list yearistype.sh
|
||||
AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk
|
||||
TZDATA_ZI_DEPS= zishrink.awk $(TDATA) $(PACKRATDATA)
|
||||
DATA= $(YDATA) $(NDATA) backzone iso3166.tab leap-seconds.list \
|
||||
leapseconds yearistype.sh $(ZONETABLES)
|
||||
AWK_SCRIPTS= checklinks.awk checktab.awk leapseconds.awk zishrink.awk
|
||||
MISC= $(AWK_SCRIPTS) zoneinfo2tdf.pl
|
||||
TZS_YEAR= 2050
|
||||
TZS= to$(TZS_YEAR).tzs
|
||||
TZS_NEW= to$(TZS_YEAR)new.tzs
|
||||
TZS_DEPS= $(PRIMARY_YDATA) asctime.c localtime.c \
|
||||
private.h tzfile.h zdump.c zic.c
|
||||
ENCHILADA= $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) $(TZS)
|
||||
ENCHILADA= $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) $(TZS) tzdata.zi
|
||||
|
||||
# Consult these files when deciding whether to rebuild the 'version' file.
|
||||
# This list is not the same as the output of 'git ls-files', since
|
||||
# .gitignore is not distributed.
|
||||
VERSION_DEPS= \
|
||||
CONTRIBUTING LICENSE Makefile NEWS README Theory \
|
||||
calendars CONTRIBUTING LICENSE Makefile NEWS README \
|
||||
africa antarctica asctime.c asia australasia \
|
||||
backward backzone \
|
||||
checklinks.awk checktab.awk \
|
||||
@ -405,7 +456,7 @@ VERSION_DEPS= \
|
||||
leap-seconds.list leapseconds.awk localtime.c \
|
||||
newctime.3 newstrftime.3 newtzset.3 northamerica \
|
||||
pacificnew private.h \
|
||||
southamerica strftime.c systemv \
|
||||
southamerica strftime.c systemv theory.html \
|
||||
time2posix.3 tz-art.htm tz-how-to.html tz-link.htm \
|
||||
tzfile.5 tzfile.h tzselect.8 tzselect.ksh \
|
||||
workman.sh yearistype.sh \
|
||||
@ -427,7 +478,7 @@ install: all $(DATA) $(REDO) $(MANS)
|
||||
$(DESTDIR)$(MANDIR)/man3 $(DESTDIR)$(MANDIR)/man5 \
|
||||
$(DESTDIR)$(MANDIR)/man8
|
||||
$(ZIC_INSTALL) -l $(LOCALTIME) -p $(POSIXRULES)
|
||||
cp -f iso3166.tab $(ZONETABLES) $(DESTDIR)$(TZDIR)/.
|
||||
cp -f $(TABDATA) $(DESTDIR)$(TZDIR)/.
|
||||
cp tzselect zic zdump $(DESTDIR)$(ETCDIR)/.
|
||||
cp libtz.a $(DESTDIR)$(LIBDIR)/.
|
||||
$(RANLIB) $(DESTDIR)$(LIBDIR)/libtz.a
|
||||
@ -448,6 +499,11 @@ version: $(VERSION_DEPS)
|
||||
printf '%s\n' "$$V" >$@.out
|
||||
mv $@.out $@
|
||||
|
||||
# This file can be tailored by setting BACKWARD, PACKRATDATA, etc.
|
||||
tzdata.zi: $(TZDATA_ZI_DEPS)
|
||||
LC_ALL=C $(AWK) -f zishrink.awk $(TDATA) $(PACKRATDATA) >$@.out
|
||||
mv $@.out $@
|
||||
|
||||
version.h: version
|
||||
VERSION=`cat version` && printf '%s\n' \
|
||||
'static char const PKGVERSION[]="($(PACKAGE)) ";' \
|
||||
@ -473,6 +529,7 @@ leapseconds: $(LEAP_DEPS)
|
||||
# Arguments to pass to submakes of install_data.
|
||||
# They can be overridden by later submake arguments.
|
||||
INSTALLARGS = \
|
||||
BACKWARD=$(BACKWARD) \
|
||||
DESTDIR=$(DESTDIR) \
|
||||
LEAPSECONDS='$(LEAPSECONDS)' \
|
||||
PACKRATDATA='$(PACKRATDATA)' \
|
||||
@ -481,10 +538,8 @@ INSTALLARGS = \
|
||||
ZIC='$(ZIC)'
|
||||
|
||||
# 'make install_data' installs one set of tz binary files.
|
||||
# It can be tailored by setting LEAPSECONDS, PACKRATDATA, etc.
|
||||
install_data: zic leapseconds yearistype $(PACKRATDATA) $(TDATA)
|
||||
$(ZIC_INSTALL) $(TDATA)
|
||||
$(AWK) '/^Rule/' $(TDATA) | $(ZIC_INSTALL) - $(PACKRATDATA)
|
||||
install_data: zic leapseconds yearistype tzdata.zi
|
||||
$(ZIC_INSTALL) tzdata.zi
|
||||
|
||||
posix_only:
|
||||
$(MAKE) $(INSTALLARGS) LEAPSECONDS= install_data
|
||||
@ -521,14 +576,14 @@ posix_packrat:
|
||||
|
||||
zones: $(REDO)
|
||||
|
||||
$(TZS_NEW): $(TDATA) zdump zic
|
||||
$(TZS_NEW): tzdata.zi zdump zic
|
||||
mkdir -p tzs.dir
|
||||
$(zic) -d tzs.dir $(TDATA)
|
||||
$(AWK) '/^Link/{print $$1 "\t" $$2 "\t" $$3}' \
|
||||
$(TDATA) | LC_ALL=C sort >$@.out
|
||||
$(zic) -d tzs.dir tzdata.zi
|
||||
$(AWK) '/^L/{print "Link\t" $$2 "\t" $$3}' \
|
||||
tzdata.zi | LC_ALL=C sort >$@.out
|
||||
wd=`pwd` && \
|
||||
zones=`$(AWK) -v wd="$$wd" \
|
||||
'/^Zone/{print wd "/tzs.dir/" $$2}' $(TDATA) \
|
||||
'/^Z/{print wd "/tzs.dir/" $$2}' tzdata.zi \
|
||||
| LC_ALL=C sort` && \
|
||||
./zdump -i -c $(TZS_YEAR) $$zones >>$@.out
|
||||
sed 's,^TZ=".*tzs\.dir/,TZ=",' $@.out >$@.sed.out
|
||||
@ -564,24 +619,37 @@ tzselect: tzselect.ksh version
|
||||
chmod +x $@.out
|
||||
mv $@.out $@
|
||||
|
||||
check: check_character_set check_white_space check_links check_sorted \
|
||||
check_tables check_tzs check_web
|
||||
check: check_character_set check_white_space check_links \
|
||||
check_name_lengths check_sorted \
|
||||
check_tables check_web check_zishrink check_tzs
|
||||
|
||||
check_character_set: $(ENCHILADA)
|
||||
LC_ALL=en_US.utf8 && export LC_ALL && \
|
||||
test ! '$(UTF8_LOCALE)' || \
|
||||
! printf 'A\304\200B\n' | \
|
||||
LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 || { \
|
||||
LC_ALL='$(UTF8_LOCALE)' && export LC_ALL && \
|
||||
sharp='#' && \
|
||||
! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \
|
||||
$(MISC) $(SOURCES) $(WEB_PAGES) \
|
||||
CONTRIBUTING LICENSE Makefile README version && \
|
||||
CONTRIBUTING LICENSE Makefile README \
|
||||
version tzdata.zi && \
|
||||
! grep -Env $(SAFE_SHARP_LINE) $(TDATA) backzone \
|
||||
leapseconds yearistype.sh zone.tab && \
|
||||
! grep -Env $(OK_LINE) $(ENCHILADA)
|
||||
! grep -Env $(OK_LINE) $(ENCHILADA); \
|
||||
}
|
||||
|
||||
check_white_space: $(ENCHILADA)
|
||||
patfmt=' \t|[\f\r\v]' && pat=`printf "$$patfmt\\n"` && \
|
||||
! grep -En "$$pat" $(ENCHILADA)
|
||||
! grep -n '[[:space:]]$$' $(ENCHILADA)
|
||||
|
||||
PRECEDES_FILE_NAME = ^(Zone|Link[[:space:]]+[^[:space:]]+)[[:space:]]+
|
||||
FILE_NAME_COMPONENT_TOO_LONG = \
|
||||
$(PRECEDES_FILE_NAME)[^[:space:]]*[^/[:space:]]{15}
|
||||
|
||||
check_name_lengths: $(TDATA) backzone
|
||||
! grep -En '$(FILE_NAME_COMPONENT_TOO_LONG)' $(TDATA) backzone
|
||||
|
||||
CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; }
|
||||
|
||||
check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab
|
||||
@ -596,6 +664,7 @@ check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab
|
||||
|
||||
check_links: checklinks.awk $(TDATA)
|
||||
$(AWK) -f checklinks.awk $(TDATA)
|
||||
$(AWK) -f checklinks.awk tzdata.zi
|
||||
|
||||
check_tables: checktab.awk $(PRIMARY_YDATA) $(ZONETABLES)
|
||||
for tab in $(ZONETABLES); do \
|
||||
@ -606,14 +675,32 @@ check_tables: checktab.awk $(PRIMARY_YDATA) $(ZONETABLES)
|
||||
check_tzs: $(TZS) $(TZS_NEW)
|
||||
diff -u $(TZS) $(TZS_NEW)
|
||||
|
||||
check_web: $(WEB_PAGES)
|
||||
$(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) $(WEB_PAGES)
|
||||
# This checks only the HTML 4.01 strict page.
|
||||
# To check the the other pages, use <https://validator.w3.org/>.
|
||||
check_web: tz-how-to.html
|
||||
$(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) tz-how-to.html
|
||||
|
||||
# Check that tzdata.zi generates the same binary data that its sources do.
|
||||
check_zishrink: tzdata.zi zic leapseconds $(PACKRATDATA) $(TDATA)
|
||||
for type in posix right; do \
|
||||
mkdir -p time_t.dir/$$type time_t.dir/$$type-shrunk && \
|
||||
case $$type in \
|
||||
right) leap='-L leapseconds';; \
|
||||
*) leap=;; \
|
||||
esac && \
|
||||
$(ZIC) $$leap -d time_t.dir/$$type $(TDATA) && \
|
||||
$(AWK) '/^Rule/' $(TDATA) | \
|
||||
$(ZIC) $$leap -d time_t.dir/$$type - $(PACKRATDATA) && \
|
||||
$(ZIC) $$leap -d time_t.dir/$$type-shrunk tzdata.zi && \
|
||||
diff -r time_t.dir/$$type time_t.dir/$$type-shrunk || exit; \
|
||||
done
|
||||
rm -fr time_t.dir
|
||||
|
||||
clean_misc:
|
||||
rm -f core *.o *.out \
|
||||
date tzselect version.h zdump zic yearistype libtz.a
|
||||
clean: clean_misc
|
||||
rm -fr *.dir tzdb-*/ $(TZS_NEW)
|
||||
rm -fr *.dir tzdata.zi tzdb-*/ $(TZS_NEW)
|
||||
|
||||
maintainer-clean: clean
|
||||
@echo 'This command is intended for maintainers to use; it'
|
||||
@ -667,6 +754,7 @@ set-timestamps.out: $(ENCHILADA)
|
||||
touch -cmr `ls -t $$file workman.sh | sed 1q` $$file.txt || \
|
||||
exit; \
|
||||
done
|
||||
touch -cmr `ls -t $(TZDATA_ZI_DEPS) | sed 1q` tzdata.zi
|
||||
touch -cmr `ls -t $(TZS_DEPS) | sed 1q` $(TZS)
|
||||
touch -cmr `ls -t $(VERSION_DEPS) | sed 1q` version
|
||||
touch $@
|
||||
@ -678,7 +766,7 @@ check_public:
|
||||
$(MAKE) maintainer-clean
|
||||
$(MAKE) "CFLAGS=$(GCC_DEBUG_FLAGS)" ALL
|
||||
mkdir -p public.dir
|
||||
for i in $(TDATA) ; do \
|
||||
for i in $(TDATA) tzdata.zi; do \
|
||||
$(zic) -v -d public.dir $$i 2>&1 || exit; \
|
||||
done
|
||||
$(zic) -v -d public.dir $(TDATA)
|
||||
@ -772,8 +860,8 @@ typecheck:
|
||||
$(MAKE) clean ; \
|
||||
done
|
||||
|
||||
zonenames: $(TDATA)
|
||||
@$(AWK) '/^Zone/ { print $$2 } /^Link/ { print $$3 }' $(TDATA)
|
||||
zonenames: tzdata.zi
|
||||
@$(AWK) '/^Z/ { print $$2 } /^L/ { print $$3 }' tzdata.zi
|
||||
|
||||
asctime.o: private.h tzfile.h
|
||||
date.o: private.h
|
||||
@ -789,6 +877,7 @@ zic.o: private.h tzfile.h version.h
|
||||
.PHONY: check check_character_set check_links
|
||||
.PHONY: check_public check_sorted check_tables
|
||||
.PHONY: check_time_t_alternatives check_tzs check_web check_white_space
|
||||
.PHONY: check_zishrink
|
||||
.PHONY: clean clean_misc force_tzs
|
||||
.PHONY: install install_data maintainer-clean names
|
||||
.PHONY: posix_only posix_packrat posix_right
|
||||
|
||||
@ -1,5 +1,169 @@
|
||||
News for the tz database
|
||||
|
||||
Release 2017c - 2017-10-20 14:49:34 -0700
|
||||
|
||||
Briefly:
|
||||
Northern Cyprus switches from +03 to +02/+03 on 2017-10-29.
|
||||
Fiji ends DST 2018-01-14, not 2018-01-21.
|
||||
Namibia switches from +01/+02 to +02 on 2018-04-01.
|
||||
Sudan switches from +03 to +02 on 2017-11-01.
|
||||
Tonga likely switches from +13/+14 to +13 on 2017-11-05.
|
||||
Turks & Caicos switches from -04 to -05/-04 on 2018-11-04.
|
||||
A new file tzdata.zi now holds a small text copy of all data.
|
||||
The zic input format has been regularized slightly.
|
||||
|
||||
Changes to future time stamps
|
||||
|
||||
Northern Cyprus has decided to resume EU rules starting
|
||||
2017-10-29, thus reinstituting winter time.
|
||||
|
||||
Fiji ends DST 2018-01-14 instead of the 2018-01-21 previously
|
||||
predicted. (Thanks to Dominic Fok.) Adjust future predictions
|
||||
accordingly.
|
||||
|
||||
Namibia will switch from +01 with DST to +02 all year on
|
||||
2017-09-03 at 02:00. This affects UT offsets starting 2018-04-01
|
||||
at 02:00. (Thanks to Steffen Thorsen.)
|
||||
|
||||
Sudan will switch from +03 to +02 on 2017-11-01. (Thanks to Ahmed
|
||||
Atyya and Yahia Abdalla.) South Sudan is not switching, so
|
||||
Africa/Juba is no longer a link to Africa/Khartoum.
|
||||
|
||||
Tonga has likely ended its experiment with DST, and will not
|
||||
adjust its clocks on 2017-11-05. Although Tonga has not announced
|
||||
whether it will continue to observe DST, the IATA is assuming that
|
||||
it will not. (Thanks to David Wade.)
|
||||
|
||||
Turks & Caicos will switch from -04 all year to -05 with US DST on
|
||||
2018-03-11 at 03:00. This affects UT offsets starting 2018-11-04
|
||||
at 02:00. (Thanks to Steffen Thorsen.)
|
||||
|
||||
Changes to past time stamps
|
||||
|
||||
Namibia switched from +02 to +01 on 1994-03-21, not 1994-04-03.
|
||||
(Thanks to Arthur David Olson.)
|
||||
|
||||
Detroit did not observe DST in 1967.
|
||||
|
||||
Use railway time for Asia/Kolkata before 1941, by switching to
|
||||
Madras local time (UT +052110) in 1870, then to IST (UT +0530) in
|
||||
1906. Also, treat 1941-2's +0630 as DST, like 1942-5.
|
||||
|
||||
Europe/Dublin's 1946 and 1947 fallback transitions occurred at
|
||||
02:00 standard time, not 02:00 DST. (Thanks to Michael Deckers.)
|
||||
|
||||
Pacific/Apia and Pacific/Pago_Pago switched from Antipodean to
|
||||
American time in 1892, not 1879. (Thanks to Michael Deckers.)
|
||||
|
||||
Adjust the 1867 transition in Alaska to better reflect the
|
||||
historical record, by changing it to occur on 1867-10-18 at 15:30
|
||||
Sitka time rather than at the start of 1867-10-17 local time.
|
||||
Although strictly speaking this is accurate only for Sitka,
|
||||
the rest of Alaska's blanks need to be filled in somehow.
|
||||
|
||||
Fix off-by-one errors in UT offsets for Adak and Nome before 1867.
|
||||
(Thanks to Michael Deckers.)
|
||||
|
||||
Add 7 s to the UT offset in Asia/Yangon before 1920.
|
||||
|
||||
Changes to zone names
|
||||
|
||||
Remove Canada/East-Saskatchewan from the 'backward' file, as it
|
||||
exceeded the 14-character limit and was an unused misnomer anyway.
|
||||
|
||||
Changes to build procedure
|
||||
|
||||
To support applications that prefer to read time zone data in text
|
||||
form, two zic input files tzdata.zi and leapseconds are now
|
||||
installed by default. The commands 'zic tzdata.zi' and 'zic -L
|
||||
leapseconds tzdata.zi' can reproduce the tzdata binary files
|
||||
without and with leap seconds, respectively. To prevent these two
|
||||
new files from being installed, use 'make TZDATA_TEXT=', and to
|
||||
suppress leap seconds from the tzdata text installation, use 'make
|
||||
TZDATA_TEXT=tzdata.zi'.
|
||||
|
||||
'make BACKWARD=' now suppresses backward-compatibility names
|
||||
like 'US/Pacific' that are defined in the 'backward' and
|
||||
'pacificnew' files.
|
||||
|
||||
'make check' now works on systems that lack a UTF-8 locale,
|
||||
or that lack the nsgmls program. Set UTF8_LOCALE to configure
|
||||
the name of a UTF-8 locale, if you have one.
|
||||
|
||||
Y2K runtime checks are no longer enabled by default. Add
|
||||
-DDEPRECATE_TWO_DIGIT_YEARS to CFLAGS to enable them, instead of
|
||||
adding -DNO_RUN_TIME_WARNINGS_ABOUT_YEAR_2000_PROBLEMS_THANK_YOU
|
||||
to disable them. (New name suggested by Brian Inglis.)
|
||||
|
||||
The build procedure for zdump now works on AIX 7.1.
|
||||
(Problem reported by Kees Dekker.)
|
||||
|
||||
Changes to code
|
||||
|
||||
zic and the reference runtime now reject multiple leap seconds
|
||||
within 28 days of each other, or leap seconds before the Epoch.
|
||||
As a result, support for double leap seconds, which was
|
||||
obsolescent and undocumented, has been removed. Double leap
|
||||
seconds were an error in the C89 standard; they have never existed
|
||||
in civil timekeeping. (Thanks to Robert Elz and Bradley White for
|
||||
noticing glitches in the code that uncovered this problem.)
|
||||
|
||||
zic now warns about use of the obsolescent and undocumented -y
|
||||
option, and about use of the obsolescent TYPE field of Rule lines.
|
||||
|
||||
zic now allows unambiguous abbreviations like "Sa" and "Su" for
|
||||
weekdays; formerly it rejected them due to a bug. Conversely, zic
|
||||
no longer considers non-prefixes to be abbreviations; for example,
|
||||
it no longer accepts "lF" as an abbreviation for "lastFriday".
|
||||
Also, zic warns about the undocumented usage with a "last-"
|
||||
prefix, e.g., "last-Fri".
|
||||
|
||||
Similarly, zic now accepts the unambiguous abbreviation "L" for
|
||||
"Link" in ordinary context and for "Leap" in leap-second context.
|
||||
Conversely, zic no longer accepts non-prefixes such as "La" as
|
||||
abbreviations for words like "Leap".
|
||||
|
||||
zic no longer accepts leap second lines in ordinary input, or
|
||||
ordinary lines in leap second input. Formerly, zic sometimes
|
||||
warned about this undocumented usage and handled it incorrectly.
|
||||
|
||||
The new macro HAVE_TZNAME governs whether the tzname external
|
||||
variable is exported, instead of USG_COMPAT. USG_COMPAT now
|
||||
governs only the external variables "timezone" and "daylight".
|
||||
This change is needed because the three variables are not in the
|
||||
same category: although POSIX requires tzname, it specifies the
|
||||
other two variables as optional. Also, USG_COMPAT is now 1 or 0:
|
||||
if not defined, the code attempts to guess it from other macros.
|
||||
|
||||
localtime.c and difftime.c no longer require stdio.h, and .c files
|
||||
other than zic.c no longer require sys/wait.h.
|
||||
|
||||
zdump.c no longer assumes snprintf. (Reported by Jonathan Leffler.)
|
||||
|
||||
Calculation of time_t extrema works around a bug in GCC 4.8.4
|
||||
(Reported by Stan Shebs and Joseph Myers.)
|
||||
|
||||
zic.c no longer mistranslates formats of line numbers in non-English
|
||||
locales. (Problem reported by Benno Schulenberg.)
|
||||
|
||||
Several minor changes have been made to the code to make it a
|
||||
bit easier to port to MS-Windows and Solaris. (Thanks to Kees
|
||||
Dekker for reporting the problems.)
|
||||
|
||||
Changes to documentation and commentary
|
||||
|
||||
The two new files 'theory.html' and 'calendars' contain the
|
||||
contents of the removed file 'Theory'. The goal is to document
|
||||
tzdb theory more accessibly.
|
||||
|
||||
The zic man page now documents abbreviation rules.
|
||||
|
||||
tz-link.htm now covers how to apply tzdata changes to clients.
|
||||
(Thanks to Jorge Fábregas for the AIX link.) It also mentions MySQL.
|
||||
|
||||
The leap-seconds.list URL has been updated to something that is
|
||||
more reliable for tzdb. (Thanks to Tim Parenti and Brian Inglis.)
|
||||
|
||||
Release 2017b - 2017-03-17 07:30:38 -0700
|
||||
|
||||
Briefly: Haiti has resumed DST.
|
||||
@ -15,6 +179,16 @@ Release 2017b - 2017-03-17 07:30:38 -0700
|
||||
Use "MMT" to abbreviate Liberia's time zone before 1972, as "-004430"
|
||||
is one byte over the POSIX limit. (Problem reported by Derick Rethans.)
|
||||
|
||||
Changes to code
|
||||
|
||||
The reference localtime implementation now falls back on the
|
||||
current US daylight-saving transition rules rather than the
|
||||
1987-2006 rules. This fallback occurs only when (1) the TZ
|
||||
environment variable's value has a name like "AST4ADT" that asks
|
||||
for daylight saving time but does not specify the rules, (2) there
|
||||
is no file by that name, and (3) the TZDEFRULES file cannot be
|
||||
loaded. (Thanks to Tom Lane.)
|
||||
|
||||
|
||||
Release 2017a - 2017-02-28 00:05:36 -0800
|
||||
|
||||
@ -1981,7 +2155,7 @@ Release 2013e - 2013-09-19 23:50:04 -0700
|
||||
|
||||
The 'leapseconds' file is now generated automatically from a
|
||||
new file 'leap-seconds.list', which is a copy of
|
||||
<ftp://time.nist.gov/pub/leap-seconds.list>.
|
||||
<ftp://ftp.nist.gov/pub/time/leap-seconds.list>
|
||||
A new source file 'leapseconds.awk' implements this.
|
||||
The goal is simplification of the future maintenance of 'leapseconds'.
|
||||
|
||||
@ -2187,7 +2361,7 @@ Release 2013a - 2013-02-27 09:20:35 -0800
|
||||
|
||||
Many changes affect historical timestamps before 1940.
|
||||
These were deduced from: Milne J. Civil time. Geogr J. 1899
|
||||
Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>.
|
||||
Feb;13(2):173-94 <https://www.jstor.org/stable/1774359>.
|
||||
|
||||
Changes affecting the code:
|
||||
|
||||
|
||||
@ -1,870 +0,0 @@
|
||||
Theory and pragmatics of the tz code and data
|
||||
|
||||
|
||||
----- Outline -----
|
||||
|
||||
Scope of the tz database
|
||||
Names of time zone rules
|
||||
Time zone abbreviations
|
||||
Accuracy of the tz database
|
||||
Time and date functions
|
||||
Interface stability
|
||||
Calendrical issues
|
||||
Time and time zones on Mars
|
||||
|
||||
|
||||
----- Scope of the tz database -----
|
||||
|
||||
The tz database attempts to record the history and predicted future of
|
||||
all computer-based clocks that track civil time. To represent this
|
||||
data, the world is partitioned into regions whose clocks all agree
|
||||
about time stamps that occur after the somewhat-arbitrary cutoff point
|
||||
of the POSIX Epoch (1970-01-01 00:00:00 UTC). For each such region,
|
||||
the database records all known clock transitions, and labels the region
|
||||
with a notable location. Although 1970 is a somewhat-arbitrary
|
||||
cutoff, there are significant challenges to moving the cutoff earlier
|
||||
even by a decade or two, due to the wide variety of local practices
|
||||
before computer timekeeping became prevalent.
|
||||
|
||||
Clock transitions before 1970 are recorded for each such location,
|
||||
because most systems support time stamps before 1970 and could
|
||||
misbehave if data entries were omitted for pre-1970 transitions.
|
||||
However, the database is not designed for and does not suffice for
|
||||
applications requiring accurate handling of all past times everywhere,
|
||||
as it would take far too much effort and guesswork to record all
|
||||
details of pre-1970 civil timekeeping.
|
||||
|
||||
As described below, reference source code for using the tz database is
|
||||
also available. The tz code is upwards compatible with POSIX, an
|
||||
international standard for UNIX-like systems. As of this writing, the
|
||||
current edition of POSIX is:
|
||||
|
||||
The Open Group Base Specifications Issue 7
|
||||
IEEE Std 1003.1-2008, 2016 Edition
|
||||
<http://pubs.opengroup.org/onlinepubs/9699919799/>
|
||||
|
||||
|
||||
|
||||
----- Names of time zone rules -----
|
||||
|
||||
Each of the database's time zone rules has a unique name.
|
||||
Inexperienced users are not expected to select these names unaided.
|
||||
Distributors should provide documentation and/or a simple selection
|
||||
interface that explains the names; for one example, see the 'tzselect'
|
||||
program in the tz code. The Unicode Common Locale Data Repository
|
||||
<http://cldr.unicode.org/> contains data that may be useful for other
|
||||
selection interfaces.
|
||||
|
||||
The time zone rule naming conventions attempt to strike a balance
|
||||
among the following goals:
|
||||
|
||||
* Uniquely identify every region where clocks have agreed since 1970.
|
||||
This is essential for the intended use: static clocks keeping local
|
||||
civil time.
|
||||
|
||||
* Indicate to experts where that region is.
|
||||
|
||||
* Be robust in the presence of political changes. For example, names
|
||||
of countries are ordinarily not used, to avoid incompatibilities
|
||||
when countries change their name (e.g. Zaire->Congo) or when
|
||||
locations change countries (e.g. Hong Kong from UK colony to
|
||||
China).
|
||||
|
||||
* Be portable to a wide variety of implementations.
|
||||
|
||||
* Use a consistent naming conventions over the entire world.
|
||||
|
||||
Names normally have the form AREA/LOCATION, where AREA is the name
|
||||
of a continent or ocean, and LOCATION is the name of a specific
|
||||
location within that region. North and South America share the same
|
||||
area, 'America'. Typical names are 'Africa/Cairo', 'America/New_York',
|
||||
and 'Pacific/Honolulu'.
|
||||
|
||||
Here are the general rules used for choosing location names,
|
||||
in decreasing order of importance:
|
||||
|
||||
Use only valid POSIX file name components (i.e., the parts of
|
||||
names other than '/'). Do not use the file name
|
||||
components '.' and '..'. Within a file name component,
|
||||
use only ASCII letters, '.', '-' and '_'. Do not use
|
||||
digits, as that might create an ambiguity with POSIX
|
||||
TZ strings. A file name component must not exceed 14
|
||||
characters or start with '-'. E.g., prefer 'Brunei'
|
||||
to 'Bandar_Seri_Begawan'. Exceptions: see the discussion
|
||||
of legacy names below.
|
||||
A name must not be empty, or contain '//', or start or end with '/'.
|
||||
Do not use names that differ only in case. Although the reference
|
||||
implementation is case-sensitive, some other implementations
|
||||
are not, and they would mishandle names differing only in case.
|
||||
If one name A is an initial prefix of another name AB (ignoring case),
|
||||
then B must not start with '/', as a regular file cannot have
|
||||
the same name as a directory in POSIX. For example,
|
||||
'America/New_York' precludes 'America/New_York/Bronx'.
|
||||
Uninhabited regions like the North Pole and Bouvet Island
|
||||
do not need locations, since local time is not defined there.
|
||||
There should typically be at least one name for each ISO 3166-1
|
||||
officially assigned two-letter code for an inhabited country
|
||||
or territory.
|
||||
If all the clocks in a region have agreed since 1970,
|
||||
don't bother to include more than one location
|
||||
even if subregions' clocks disagreed before 1970.
|
||||
Otherwise these tables would become annoyingly large.
|
||||
If a name is ambiguous, use a less ambiguous alternative;
|
||||
e.g. many cities are named San José and Georgetown, so
|
||||
prefer 'Costa_Rica' to 'San_Jose' and 'Guyana' to 'Georgetown'.
|
||||
Keep locations compact. Use cities or small islands, not countries
|
||||
or regions, so that any future time zone changes do not split
|
||||
locations into different time zones. E.g. prefer 'Paris'
|
||||
to 'France', since France has had multiple time zones.
|
||||
Use mainstream English spelling, e.g. prefer 'Rome' to 'Roma', and
|
||||
prefer 'Athens' to the Greek 'Αθήνα' or the Romanized 'Athína'.
|
||||
The POSIX file name restrictions encourage this rule.
|
||||
Use the most populous among locations in a zone,
|
||||
e.g. prefer 'Shanghai' to 'Beijing'. Among locations with
|
||||
similar populations, pick the best-known location,
|
||||
e.g. prefer 'Rome' to 'Milan'.
|
||||
Use the singular form, e.g. prefer 'Canary' to 'Canaries'.
|
||||
Omit common suffixes like '_Islands' and '_City', unless that
|
||||
would lead to ambiguity. E.g. prefer 'Cayman' to
|
||||
'Cayman_Islands' and 'Guatemala' to 'Guatemala_City',
|
||||
but prefer 'Mexico_City' to 'Mexico' because the country
|
||||
of Mexico has several time zones.
|
||||
Use '_' to represent a space.
|
||||
Omit '.' from abbreviations in names, e.g. prefer 'St_Helena'
|
||||
to 'St._Helena'.
|
||||
Do not change established names if they only marginally
|
||||
violate the above rules. For example, don't change
|
||||
the existing name 'Rome' to 'Milan' merely because
|
||||
Milan's population has grown to be somewhat greater
|
||||
than Rome's.
|
||||
If a name is changed, put its old spelling in the 'backward' file.
|
||||
This means old spellings will continue to work.
|
||||
|
||||
The file 'zone1970.tab' lists geographical locations used to name time
|
||||
zone rules. It is intended to be an exhaustive list of names for
|
||||
geographic regions as described above; this is a subset of the names
|
||||
in the data. Although a 'zone1970.tab' location's longitude
|
||||
corresponds to its LMT offset with one hour for every 15 degrees east
|
||||
longitude, this relationship is not exact.
|
||||
|
||||
Older versions of this package used a different naming scheme,
|
||||
and these older names are still supported.
|
||||
See the file 'backward' for most of these older names
|
||||
(e.g., 'US/Eastern' instead of 'America/New_York').
|
||||
The other old-fashioned names still supported are
|
||||
'WET', 'CET', 'MET', and 'EET' (see the file 'europe').
|
||||
|
||||
Older versions of this package defined legacy names that are
|
||||
incompatible with the first rule of location names, but which are
|
||||
still supported. These legacy names are mostly defined in the file
|
||||
'etcetera'. Also, the file 'backward' defines the legacy names
|
||||
'GMT0', 'GMT-0', 'GMT+0' and 'Canada/East-Saskatchewan', and the file
|
||||
'northamerica' defines the legacy names 'EST5EDT', 'CST6CDT',
|
||||
'MST7MDT', and 'PST8PDT'.
|
||||
|
||||
Excluding 'backward' should not affect the other data. If
|
||||
'backward' is excluded, excluding 'etcetera' should not affect the
|
||||
remaining data.
|
||||
|
||||
|
||||
----- Time zone abbreviations -----
|
||||
|
||||
When this package is installed, it generates time zone abbreviations
|
||||
like 'EST' to be compatible with human tradition and POSIX.
|
||||
Here are the general rules used for choosing time zone abbreviations,
|
||||
in decreasing order of importance:
|
||||
|
||||
Use three or more characters that are ASCII alphanumerics or '+' or '-'.
|
||||
Previous editions of this database also used characters like
|
||||
' ' and '?', but these characters have a special meaning to
|
||||
the shell and cause commands like
|
||||
set `date`
|
||||
to have unexpected effects.
|
||||
Previous editions of this rule required upper-case letters,
|
||||
but the Congressman who introduced Chamorro Standard Time
|
||||
preferred "ChST", so lower-case letters are now allowed.
|
||||
Also, POSIX from 2001 on relaxed the rule to allow '-', '+',
|
||||
and alphanumeric characters from the portable character set
|
||||
in the current locale. In practice ASCII alphanumerics and
|
||||
'+' and '-' are safe in all locales.
|
||||
|
||||
In other words, in the C locale the POSIX extended regular
|
||||
expression [-+[:alnum:]]{3,} should match the abbreviation.
|
||||
This guarantees that all abbreviations could have been
|
||||
specified by a POSIX TZ string.
|
||||
|
||||
Use abbreviations that are in common use among English-speakers,
|
||||
e.g. 'EST' for Eastern Standard Time in North America.
|
||||
We assume that applications translate them to other languages
|
||||
as part of the normal localization process; for example,
|
||||
a French application might translate 'EST' to 'HNE'.
|
||||
|
||||
For zones whose times are taken from a city's longitude, use the
|
||||
traditional xMT notation, e.g. 'PMT' for Paris Mean Time.
|
||||
The only name like this in current use is 'GMT'.
|
||||
|
||||
Use 'LMT' for local mean time of locations before the introduction
|
||||
of standard time; see "Scope of the tz database".
|
||||
|
||||
If there is no common English abbreviation, use numeric offsets like
|
||||
-05 and +0830 that are generated by zic's %z notation.
|
||||
|
||||
Use current abbreviations for older timestamps to avoid confusion.
|
||||
For example, in 1910 a common English abbreviation for UT +01
|
||||
in central Europe was 'MEZ' (short for both "Middle European
|
||||
Zone" and for "Mitteleuropäische Zeit" in German). Nowadays
|
||||
'CET' ("Central European Time") is more common in English, and
|
||||
the database uses 'CET' even for circa-1910 timestamps as this
|
||||
is less confusing for modern users and avoids the need for
|
||||
determining when 'CET' supplanted 'MEZ' in common usage.
|
||||
|
||||
Use a consistent style in a zone's history. For example, if a zone's
|
||||
history tends to use numeric abbreviations and a particular
|
||||
entry could go either way, use a numeric abbreviation.
|
||||
|
||||
[The remaining guidelines predate the introduction of %z.
|
||||
They are problematic as they mean tz data entries invent
|
||||
notation rather than record it. These guidelines are now
|
||||
deprecated and the plan is to gradually move to %z for
|
||||
inhabited locations and to "-00" for uninhabited locations.]
|
||||
|
||||
If there is no common English abbreviation, abbreviate the English
|
||||
translation of the usual phrase used by native speakers.
|
||||
If this is not available or is a phrase mentioning the country
|
||||
(e.g. "Cape Verde Time"), then:
|
||||
|
||||
When a country is identified with a single or principal zone,
|
||||
append 'T' to the country's ISO code, e.g. 'CVT' for
|
||||
Cape Verde Time. For summer time append 'ST';
|
||||
for double summer time append 'DST'; etc.
|
||||
Otherwise, take the first three letters of an English place
|
||||
name identifying each zone and append 'T', 'ST', etc.
|
||||
as before; e.g. 'CHAST' for CHAtham Summer Time.
|
||||
|
||||
Use UT (with time zone abbreviation '-00') for locations while
|
||||
uninhabited. The leading '-' is a flag that the time
|
||||
zone is in some sense undefined; this notation is
|
||||
derived from Internet RFC 3339.
|
||||
|
||||
Application writers should note that these abbreviations are ambiguous
|
||||
in practice: e.g. 'CST' has a different meaning in China than
|
||||
it does in the United States. In new applications, it's often better
|
||||
to use numeric UT offsets like '-0600' instead of time zone
|
||||
abbreviations like 'CST'; this avoids the ambiguity.
|
||||
|
||||
|
||||
----- Accuracy of the tz database -----
|
||||
|
||||
The tz database is not authoritative, and it surely has errors.
|
||||
Corrections are welcome and encouraged; see the file CONTRIBUTING.
|
||||
Users requiring authoritative data should consult national standards
|
||||
bodies and the references cited in the database's comments.
|
||||
|
||||
Errors in the tz database arise from many sources:
|
||||
|
||||
* The tz database predicts future time stamps, and current predictions
|
||||
will be incorrect after future governments change the rules.
|
||||
For example, if today someone schedules a meeting for 13:00 next
|
||||
October 1, Casablanca time, and tomorrow Morocco changes its
|
||||
daylight saving rules, software can mess up after the rule change
|
||||
if it blithely relies on conversions made before the change.
|
||||
|
||||
* The pre-1970 entries in this database cover only a tiny sliver of how
|
||||
clocks actually behaved; the vast majority of the necessary
|
||||
information was lost or never recorded. Thousands more zones would
|
||||
be needed if the tz database's scope were extended to cover even
|
||||
just the known or guessed history of standard time; for example,
|
||||
the current single entry for France would need to split into dozens
|
||||
of entries, perhaps hundreds. And in most of the world even this
|
||||
approach would be misleading due to widespread disagreement or
|
||||
indifference about what times should be observed. In her 2015 book
|
||||
"The Global Transformation of Time, 1870-1950", Vanessa Ogle writes
|
||||
"Outside of Europe and North America there was no system of time
|
||||
zones at all, often not even a stable landscape of mean times,
|
||||
prior to the middle decades of the twentieth century". See:
|
||||
Timothy Shenk, Booked: A Global History of Time. Dissent 2015-12-17
|
||||
https://www.dissentmagazine.org/blog/booked-a-global-history-of-time-vanessa-ogle
|
||||
|
||||
* Most of the pre-1970 data entries come from unreliable sources, often
|
||||
astrology books that lack citations and whose compilers evidently
|
||||
invented entries when the true facts were unknown, without
|
||||
reporting which entries were known and which were invented.
|
||||
These books often contradict each other or give implausible entries,
|
||||
and on the rare occasions when they are checked they are
|
||||
typically found to be incorrect.
|
||||
|
||||
* For the UK the tz database relies on years of first-class work done by
|
||||
Joseph Myers and others; see <http://www.polyomino.org.uk/british-time/>.
|
||||
Other countries are not done nearly as well.
|
||||
|
||||
* Sometimes, different people in the same city would maintain clocks
|
||||
that differed significantly. Railway time was used by railroad
|
||||
companies (which did not always agree with each other),
|
||||
church-clock time was used for birth certificates, etc.
|
||||
Often this was merely common practice, but sometimes it was set by law.
|
||||
For example, from 1891 to 1911 the UT offset in France was legally
|
||||
0:09:21 outside train stations and 0:04:21 inside.
|
||||
|
||||
* Although a named location in the tz database stands for the
|
||||
containing region, its pre-1970 data entries are often accurate for
|
||||
only a small subset of that region. For example, Europe/London
|
||||
stands for the United Kingdom, but its pre-1847 times are valid
|
||||
only for locations that have London's exact meridian, and its 1847
|
||||
transition to GMT is known to be valid only for the L&NW and the
|
||||
Caledonian railways.
|
||||
|
||||
* The tz database does not record the earliest time for which a zone's
|
||||
data entries are thereafter valid for every location in the region.
|
||||
For example, Europe/London is valid for all locations in its
|
||||
region after GMT was made the standard time, but the date of
|
||||
standardization (1880-08-02) is not in the tz database, other than
|
||||
in commentary. For many zones the earliest time of validity is
|
||||
unknown.
|
||||
|
||||
* The tz database does not record a region's boundaries, and in many
|
||||
cases the boundaries are not known. For example, the zone
|
||||
America/Kentucky/Louisville represents a region around the city of
|
||||
Louisville, the boundaries of which are unclear.
|
||||
|
||||
* Changes that are modeled as instantaneous transitions in the tz
|
||||
database were often spread out over hours, days, or even decades.
|
||||
|
||||
* Even if the time is specified by law, locations sometimes
|
||||
deliberately flout the law.
|
||||
|
||||
* Early timekeeping practices, even assuming perfect clocks, were
|
||||
often not specified to the accuracy that the tz database requires.
|
||||
|
||||
* Sometimes historical timekeeping was specified more precisely
|
||||
than what the tz database can handle. For example, from 1909 to
|
||||
1937 Netherlands clocks were legally UT +00:19:32.13, but the tz
|
||||
database cannot represent the fractional second.
|
||||
|
||||
* Even when all the timestamp transitions recorded by the tz database
|
||||
are correct, the tz rules that generate them may not faithfully
|
||||
reflect the historical rules. For example, from 1922 until World
|
||||
War II the UK moved clocks forward the day following the third
|
||||
Saturday in April unless that was Easter, in which case it moved
|
||||
clocks forward the previous Sunday. Because the tz database has no
|
||||
way to specify Easter, these exceptional years are entered as
|
||||
separate tz Rule lines, even though the legal rules did not change.
|
||||
|
||||
* The tz database models pre-standard time using the proleptic Gregorian
|
||||
calendar and local mean time (LMT), but many people used other
|
||||
calendars and other timescales. For example, the Roman Empire used
|
||||
the Julian calendar, and had 12 varying-length daytime hours with a
|
||||
non-hour-based system at night.
|
||||
|
||||
* Early clocks were less reliable, and data entries do not represent
|
||||
clock error.
|
||||
|
||||
* The tz database assumes Universal Time (UT) as an origin, even
|
||||
though UT is not standardized for older time stamps. In the tz
|
||||
database commentary, UT denotes a family of time standards that
|
||||
includes Coordinated Universal Time (UTC) along with other variants
|
||||
such as UT1 and GMT, with days starting at midnight. Although UT
|
||||
equals UTC for modern time stamps, UTC was not defined until 1960,
|
||||
so commentary uses the more-general abbreviation UT for time stamps
|
||||
that might predate 1960. Since UT, UT1, etc. disagree slightly,
|
||||
and since pre-1972 UTC seconds varied in length, interpretation of
|
||||
older time stamps can be problematic when subsecond accuracy is
|
||||
needed.
|
||||
|
||||
* Civil time was not based on atomic time before 1972, and we don't
|
||||
know the history of earth's rotation accurately enough to map SI
|
||||
seconds to historical solar time to more than about one-hour
|
||||
accuracy. See: Stephenson FR, Morrison LV, Hohenkerk CY.
|
||||
Measurement of the Earth's rotation: 720 BC to AD 2015.
|
||||
Proc Royal Soc A. 2016 Dec 7;472:20160404.
|
||||
http://dx.doi.org/10.1098/rspa.2016.0404
|
||||
Also see: Espenak F. Uncertainty in Delta T (ΔT).
|
||||
http://eclipse.gsfc.nasa.gov/SEhelp/uncertainty2004.html
|
||||
|
||||
* The relationship between POSIX time (that is, UTC but ignoring leap
|
||||
seconds) and UTC is not agreed upon after 1972. Although the POSIX
|
||||
clock officially stops during an inserted leap second, at least one
|
||||
proposed standard has it jumping back a second instead; and in
|
||||
practice POSIX clocks more typically either progress glacially during
|
||||
a leap second, or are slightly slowed while near a leap second.
|
||||
|
||||
* The tz database does not represent how uncertain its information is.
|
||||
Ideally it would contain information about when data entries are
|
||||
incomplete or dicey. Partial temporal knowledge is a field of
|
||||
active research, though, and it's not clear how to apply it here.
|
||||
|
||||
In short, many, perhaps most, of the tz database's pre-1970 and future
|
||||
time stamps are either wrong or misleading. Any attempt to pass the
|
||||
tz database off as the definition of time should be unacceptable to
|
||||
anybody who cares about the facts. In particular, the tz database's
|
||||
LMT offsets should not be considered meaningful, and should not prompt
|
||||
creation of zones merely because two locations differ in LMT or
|
||||
transitioned to standard time at different dates.
|
||||
|
||||
|
||||
----- Time and date functions -----
|
||||
|
||||
The tz code contains time and date functions that are upwards
|
||||
compatible with those of POSIX.
|
||||
|
||||
POSIX has the following properties and limitations.
|
||||
|
||||
* In POSIX, time display in a process is controlled by the
|
||||
environment variable TZ. Unfortunately, the POSIX TZ string takes
|
||||
a form that is hard to describe and is error-prone in practice.
|
||||
Also, POSIX TZ strings can't deal with other (for example, Israeli)
|
||||
daylight saving time rules, or situations where more than two
|
||||
time zone abbreviations are used in an area.
|
||||
|
||||
The POSIX TZ string takes the following form:
|
||||
|
||||
stdoffset[dst[offset][,date[/time],date[/time]]]
|
||||
|
||||
where:
|
||||
|
||||
std and dst
|
||||
are 3 or more characters specifying the standard
|
||||
and daylight saving time (DST) zone names.
|
||||
Starting with POSIX.1-2001, std and dst may also be
|
||||
in a quoted form like "<UTC+10>"; this allows
|
||||
"+" and "-" in the names.
|
||||
offset
|
||||
is of the form '[+-]hh:[mm[:ss]]' and specifies the
|
||||
offset west of UT. 'hh' may be a single digit; 0<=hh<=24.
|
||||
The default DST offset is one hour ahead of standard time.
|
||||
date[/time],date[/time]
|
||||
specifies the beginning and end of DST. If this is absent,
|
||||
the system supplies its own rules for DST, and these can
|
||||
differ from year to year; typically US DST rules are used.
|
||||
time
|
||||
takes the form 'hh:[mm[:ss]]' and defaults to 02:00.
|
||||
This is the same format as the offset, except that a
|
||||
leading '+' or '-' is not allowed.
|
||||
date
|
||||
takes one of the following forms:
|
||||
Jn (1<=n<=365)
|
||||
origin-1 day number not counting February 29
|
||||
n (0<=n<=365)
|
||||
origin-0 day number counting February 29 if present
|
||||
Mm.n.d (0[Sunday]<=d<=6[Saturday], 1<=n<=5, 1<=m<=12)
|
||||
for the dth day of week n of month m of the year,
|
||||
where week 1 is the first week in which day d appears,
|
||||
and '5' stands for the last week in which day d appears
|
||||
(which may be either the 4th or 5th week).
|
||||
Typically, this is the only useful form;
|
||||
the n and Jn forms are rarely used.
|
||||
|
||||
Here is an example POSIX TZ string, for US Pacific time using rules
|
||||
appropriate from 1987 through 2006:
|
||||
|
||||
TZ='PST8PDT,M4.1.0/02:00,M10.5.0/02:00'
|
||||
|
||||
This POSIX TZ string is hard to remember, and mishandles time stamps
|
||||
before 1987 and after 2006. With this package you can use this
|
||||
instead:
|
||||
|
||||
TZ='America/Los_Angeles'
|
||||
|
||||
* POSIX does not define the exact meaning of TZ values like "EST5EDT".
|
||||
Typically the current US DST rules are used to interpret such values,
|
||||
but this means that the US DST rules are compiled into each program
|
||||
that does time conversion. This means that when US time conversion
|
||||
rules change (as in the United States in 1987), all programs that
|
||||
do time conversion must be recompiled to ensure proper results.
|
||||
|
||||
* The TZ environment variable is process-global, which makes it hard
|
||||
to write efficient, thread-safe applications that need access
|
||||
to multiple time zones.
|
||||
|
||||
* In POSIX, there's no tamper-proof way for a process to learn the
|
||||
system's best idea of local wall clock. (This is important for
|
||||
applications that an administrator wants used only at certain times -
|
||||
without regard to whether the user has fiddled the "TZ" environment
|
||||
variable. While an administrator can "do everything in UTC" to get
|
||||
around the problem, doing so is inconvenient and precludes handling
|
||||
daylight saving time shifts - as might be required to limit phone
|
||||
calls to off-peak hours.)
|
||||
|
||||
* POSIX provides no convenient and efficient way to determine the UT
|
||||
offset and time zone abbreviation of arbitrary time stamps,
|
||||
particularly for time zone settings that do not fit into the
|
||||
POSIX model.
|
||||
|
||||
* POSIX requires that systems ignore leap seconds.
|
||||
|
||||
* The tz code attempts to support all the time_t implementations
|
||||
allowed by POSIX. The time_t type represents a nonnegative count of
|
||||
seconds since 1970-01-01 00:00:00 UTC, ignoring leap seconds.
|
||||
In practice, time_t is usually a signed 64- or 32-bit integer; 32-bit
|
||||
signed time_t values stop working after 2038-01-19 03:14:07 UTC, so
|
||||
new implementations these days typically use a signed 64-bit integer.
|
||||
Unsigned 32-bit integers are used on one or two platforms,
|
||||
and 36-bit and 40-bit integers are also used occasionally.
|
||||
Although earlier POSIX versions allowed time_t to be a
|
||||
floating-point type, this was not supported by any practical
|
||||
systems, and POSIX.1-2013 and the tz code both require time_t
|
||||
to be an integer type.
|
||||
|
||||
These are the extensions that have been made to the POSIX functions:
|
||||
|
||||
* The "TZ" environment variable is used in generating the name of a file
|
||||
from which time zone information is read (or is interpreted a la
|
||||
POSIX); "TZ" is no longer constrained to be a three-letter time zone
|
||||
name followed by a number of hours and an optional three-letter
|
||||
daylight time zone name. The daylight saving time rules to be used
|
||||
for a particular time zone are encoded in the time zone file;
|
||||
the format of the file allows U.S., Australian, and other rules to be
|
||||
encoded, and allows for situations where more than two time zone
|
||||
abbreviations are used.
|
||||
|
||||
It was recognized that allowing the "TZ" environment variable to
|
||||
take on values such as "America/New_York" might cause "old" programs
|
||||
(that expect "TZ" to have a certain form) to operate incorrectly;
|
||||
consideration was given to using some other environment variable
|
||||
(for example, "TIMEZONE") to hold the string used to generate the
|
||||
time zone information file name. In the end, however, it was decided
|
||||
to continue using "TZ": it is widely used for time zone purposes;
|
||||
separately maintaining both "TZ" and "TIMEZONE" seemed a nuisance;
|
||||
and systems where "new" forms of "TZ" might cause problems can simply
|
||||
use TZ values such as "EST5EDT" which can be used both by
|
||||
"new" programs (a la POSIX) and "old" programs (as zone names and
|
||||
offsets).
|
||||
|
||||
* The code supports platforms with a UT offset member in struct tm,
|
||||
e.g., tm_gmtoff.
|
||||
|
||||
* The code supports platforms with a time zone abbreviation member in
|
||||
struct tm, e.g., tm_zone.
|
||||
|
||||
* Since the "TZ" environment variable can now be used to control time
|
||||
conversion, the "daylight" and "timezone" variables are no longer
|
||||
needed. (These variables are defined and set by "tzset"; however, their
|
||||
values will not be used by "localtime.")
|
||||
|
||||
* Functions tzalloc, tzfree, localtime_rz, and mktime_z for
|
||||
more-efficient thread-safe applications that need to use
|
||||
multiple time zones. The tzalloc and tzfree functions
|
||||
allocate and free objects of type timezone_t, and localtime_rz
|
||||
and mktime_z are like localtime_r and mktime with an extra
|
||||
timezone_t argument. The functions were inspired by NetBSD.
|
||||
|
||||
* A function "tzsetwall" has been added to arrange for the system's
|
||||
best approximation to local wall clock time to be delivered by
|
||||
subsequent calls to "localtime." Source code for portable
|
||||
applications that "must" run on local wall clock time should call
|
||||
"tzsetwall();" if such code is moved to "old" systems that don't
|
||||
provide tzsetwall, you won't be able to generate an executable program.
|
||||
(These time zone functions also arrange for local wall clock time to be
|
||||
used if tzset is called - directly or indirectly - and there's no "TZ"
|
||||
environment variable; portable applications should not, however, rely
|
||||
on this behavior since it's not the way SVR2 systems behave.)
|
||||
|
||||
* Negative time_t values are supported, on systems where time_t is signed.
|
||||
|
||||
* These functions can account for leap seconds, thanks to Bradley White.
|
||||
|
||||
Points of interest to folks with other systems:
|
||||
|
||||
* Code compatible with this package is already part of many platforms,
|
||||
including GNU/Linux, Android, the BSDs, Chromium OS, Cygwin, AIX, iOS,
|
||||
BlackBery 10, macOS, Microsoft Windows, OpenVMS, and Solaris.
|
||||
On such hosts, the primary use of this package
|
||||
is to update obsolete time zone rule tables.
|
||||
To do this, you may need to compile the time zone compiler
|
||||
'zic' supplied with this package instead of using the system 'zic',
|
||||
since the format of zic's input is occasionally extended,
|
||||
and a platform may still be shipping an older zic.
|
||||
|
||||
* The UNIX Version 7 "timezone" function is not present in this package;
|
||||
it's impossible to reliably map timezone's arguments (a "minutes west
|
||||
of GMT" value and a "daylight saving time in effect" flag) to a
|
||||
time zone abbreviation, and we refuse to guess.
|
||||
Programs that in the past used the timezone function may now examine
|
||||
tzname[localtime(&clock)->tm_isdst] to learn the correct time
|
||||
zone abbreviation to use. Alternatively, use
|
||||
localtime(&clock)->tm_zone if this has been enabled.
|
||||
|
||||
* The 4.2BSD gettimeofday function is not used in this package.
|
||||
This formerly let users obtain the current UTC offset and DST flag,
|
||||
but this functionality was removed in later versions of BSD.
|
||||
|
||||
* In SVR2, time conversion fails for near-minimum or near-maximum
|
||||
time_t values when doing conversions for places that don't use UT.
|
||||
This package takes care to do these conversions correctly.
|
||||
A comment in the source code tells how to get compatibly wrong
|
||||
results.
|
||||
|
||||
The functions that are conditionally compiled if STD_INSPIRED is defined
|
||||
should, at this point, be looked on primarily as food for thought. They are
|
||||
not in any sense "standard compatible" - some are not, in fact, specified in
|
||||
*any* standard. They do, however, represent responses of various authors to
|
||||
standardization proposals.
|
||||
|
||||
Other time conversion proposals, in particular the one developed by folks at
|
||||
Hewlett Packard, offer a wider selection of functions that provide capabilities
|
||||
beyond those provided here. The absence of such functions from this package
|
||||
is not meant to discourage the development, standardization, or use of such
|
||||
functions. Rather, their absence reflects the decision to make this package
|
||||
contain valid extensions to POSIX, to ensure its broad acceptability. If
|
||||
more powerful time conversion functions can be standardized, so much the
|
||||
better.
|
||||
|
||||
|
||||
----- Interface stability -----
|
||||
|
||||
The tz code and data supply the following interfaces:
|
||||
|
||||
* A set of zone names as per "Names of time zone rules" above.
|
||||
|
||||
* Library functions described in "Time and date functions" above.
|
||||
|
||||
* The programs tzselect, zdump, and zic, documented in their man pages.
|
||||
|
||||
* The format of zic input files, documented in the zic man page.
|
||||
|
||||
* The format of zic output files, documented in the tzfile man page.
|
||||
|
||||
* The format of zone table files, documented in zone1970.tab.
|
||||
|
||||
* The format of the country code file, documented in iso3166.tab.
|
||||
|
||||
* The version number of the code and data, as the first line of
|
||||
the text file 'version' in each release.
|
||||
|
||||
Interface changes in a release attempt to preserve compatibility with
|
||||
recent releases. For example, tz data files typically do not rely on
|
||||
recently-added zic features, so that users can run older zic versions
|
||||
to process newer data files. The tz-link.htm file describes how
|
||||
releases are tagged and distributed.
|
||||
|
||||
Interfaces not listed above are less stable. For example, users
|
||||
should not rely on particular UT offsets or abbreviations for time
|
||||
stamps, as data entries are often based on guesswork and these guesses
|
||||
may be corrected or improved.
|
||||
|
||||
|
||||
----- Calendrical issues -----
|
||||
|
||||
Calendrical issues are a bit out of scope for a time zone database,
|
||||
but they indicate the sort of problems that we would run into if we
|
||||
extended the time zone database further into the past. An excellent
|
||||
resource in this area is Nachum Dershowitz and Edward M. Reingold,
|
||||
Calendrical Calculations: Third Edition, Cambridge University Press (2008)
|
||||
<http://emr.cs.iit.edu/home/reingold/calendar-book/third-edition/>.
|
||||
Other information and sources are given below. They sometimes disagree.
|
||||
|
||||
|
||||
France
|
||||
|
||||
Gregorian calendar adopted 1582-12-20.
|
||||
French Revolutionary calendar used 1793-11-24 through 1805-12-31,
|
||||
and (in Paris only) 1871-05-06 through 1871-05-23.
|
||||
|
||||
|
||||
Russia
|
||||
|
||||
From Chris Carrier (1996-12-02):
|
||||
On 1929-10-01 the Soviet Union instituted an "Eternal Calendar"
|
||||
with 30-day months plus 5 holidays, with a 5-day week.
|
||||
On 1931-12-01 it changed to a 6-day week; in 1934 it reverted to the
|
||||
Gregorian calendar while retaining the 6-day week; on 1940-06-27 it
|
||||
reverted to the 7-day week. With the 6-day week the usual days
|
||||
off were the 6th, 12th, 18th, 24th and 30th of the month.
|
||||
(Source: Evitiar Zerubavel, _The Seven Day Circle_)
|
||||
|
||||
|
||||
Mark Brader reported a similar story in "The Book of Calendars", edited
|
||||
by Frank Parise (1982, Facts on File, ISBN 0-8719-6467-8), page 377. But:
|
||||
|
||||
From: Petteri Sulonen (via Usenet)
|
||||
Date: 14 Jan 1999 00:00:00 GMT
|
||||
...
|
||||
|
||||
If your source is correct, how come documents between 1929 and 1940 were
|
||||
still dated using the conventional, Gregorian calendar?
|
||||
|
||||
I can post a scan of a document dated December 1, 1934, signed by
|
||||
Yenukidze, the secretary, on behalf of Kalinin, the President of the
|
||||
Executive Committee of the Supreme Soviet, if you like.
|
||||
|
||||
|
||||
|
||||
Sweden (and Finland)
|
||||
|
||||
From: Mark Brader
|
||||
Subject: Re: Gregorian reform - a part of locale?
|
||||
<news:1996Jul6.012937.29190@sq.com>
|
||||
Date: 1996-07-06
|
||||
|
||||
In 1700, Denmark made the transition from Julian to Gregorian. Sweden
|
||||
decided to *start* a transition in 1700 as well, but rather than have one of
|
||||
those unsightly calendar gaps :-), they simply decreed that the next leap
|
||||
year after 1696 would be in 1744 - putting the whole country on a calendar
|
||||
different from both Julian and Gregorian for a period of 40 years.
|
||||
|
||||
However, in 1704 something went wrong and the plan was not carried through;
|
||||
they did, after all, have a leap year that year. And one in 1708. In 1712
|
||||
they gave it up and went back to Julian, putting 30 days in February that
|
||||
year!...
|
||||
|
||||
Then in 1753, Sweden made the transition to Gregorian in the usual manner,
|
||||
getting there only 13 years behind the original schedule.
|
||||
|
||||
(A previous posting of this story was challenged, and Swedish readers
|
||||
produced the following references to support it: "Tideräkning och historia"
|
||||
by Natanael Beckman (1924) and "Tid, en bok om tideräkning och
|
||||
kalenderväsen" by Lars-Olof Lodén (1968).
|
||||
|
||||
|
||||
Grotefend's data
|
||||
|
||||
From: "Michael Palmer" [with one obvious typo fixed]
|
||||
Subject: Re: Gregorian Calendar (was Re: Another FHC related question
|
||||
Newsgroups: soc.genealogy.german
|
||||
Date: Tue, 9 Feb 1999 02:32:48 -800
|
||||
...
|
||||
|
||||
The following is a(n incomplete) listing, arranged chronologically, of
|
||||
European states, with the date they converted from the Julian to the
|
||||
Gregorian calendar:
|
||||
|
||||
04/15 Oct 1582 - Italy (with exceptions), Spain, Portugal, Poland (Roman
|
||||
Catholics and Danzig only)
|
||||
09/20 Dec 1582 - France, Lorraine
|
||||
|
||||
21 Dec 1582/
|
||||
01 Jan 1583 - Holland, Brabant, Flanders, Hennegau
|
||||
10/21 Feb 1583 - bishopric of Liege (Lüttich)
|
||||
13/24 Feb 1583 - bishopric of Augsburg
|
||||
04/15 Oct 1583 - electorate of Trier
|
||||
05/16 Oct 1583 - Bavaria, bishoprics of Freising, Eichstedt, Regensburg,
|
||||
Salzburg, Brixen
|
||||
13/24 Oct 1583 - Austrian Oberelsaß and Breisgau
|
||||
20/31 Oct 1583 - bishopric of Basel
|
||||
02/13 Nov 1583 - duchy of Jülich-Berg
|
||||
02/13 Nov 1583 - electorate and city of Köln
|
||||
04/15 Nov 1583 - bishopric of Würzburg
|
||||
11/22 Nov 1583 - electorate of Mainz
|
||||
16/27 Nov 1583 - bishopric of Strassburg and the margraviate of Baden
|
||||
17/28 Nov 1583 - bishopric of Münster and duchy of Cleve
|
||||
14/25 Dec 1583 - Steiermark
|
||||
|
||||
06/17 Jan 1584 - Austria and Bohemia
|
||||
11/22 Jan 1584 - Lucerne, Uri, Schwyz, Zug, Freiburg, Solothurn
|
||||
12/23 Jan 1584 - Silesia and the Lausitz
|
||||
22 Jan/
|
||||
02 Feb 1584 - Hungary (legally on 21 Oct 1587)
|
||||
Jun 1584 - Unterwalden
|
||||
01/12 Jul 1584 - duchy of Westfalen
|
||||
|
||||
16/27 Jun 1585 - bishopric of Paderborn
|
||||
|
||||
14/25 Dec 1590 - Transylvania
|
||||
|
||||
22 Aug/
|
||||
02 Sep 1612 - duchy of Prussia
|
||||
|
||||
13/24 Dec 1614 - Pfalz-Neuburg
|
||||
|
||||
1617 - duchy of Kurland (reverted to the Julian calendar in
|
||||
1796)
|
||||
|
||||
1624 - bishopric of Osnabrück
|
||||
|
||||
1630 - bishopric of Minden
|
||||
|
||||
15/26 Mar 1631 - bishopric of Hildesheim
|
||||
|
||||
1655 - Kanton Wallis
|
||||
|
||||
05/16 Feb 1682 - city of Strassburg
|
||||
|
||||
18 Feb/
|
||||
01 Mar 1700 - Protestant Germany (including Swedish possessions in
|
||||
Germany), Denmark, Norway
|
||||
30 Jun/
|
||||
12 Jul 1700 - Gelderland, Zutphen
|
||||
10 Nov/
|
||||
12 Dec 1700 - Utrecht, Overijssel
|
||||
|
||||
31 Dec 1700/
|
||||
12 Jan 1701 - Friesland, Groningen, Zürich, Bern, Basel, Geneva,
|
||||
Turgau, and Schaffhausen
|
||||
|
||||
1724 - Glarus, Appenzell, and the city of St. Gallen
|
||||
|
||||
01 Jan 1750 - Pisa and Florence
|
||||
|
||||
02/14 Sep 1752 - Great Britain
|
||||
|
||||
17 Feb/
|
||||
01 Mar 1753 - Sweden
|
||||
|
||||
1760-1812 - Graubünden
|
||||
|
||||
The Russian empire (including Finland and the Baltic states) did not
|
||||
convert to the Gregorian calendar until the Soviet revolution of 1917.
|
||||
|
||||
Source: H. Grotefend, _Taschenbuch der Zeitrechnung des deutschen
|
||||
Mittelalters und der Neuzeit_, herausgegeben von Dr. O. Grotefend
|
||||
(Hannover: Hahnsche Buchhandlung, 1941), pp. 26-28.
|
||||
|
||||
|
||||
----- Time and time zones on Mars -----
|
||||
|
||||
Some people's work schedules use Mars time. Jet Propulsion Laboratory
|
||||
(JPL) coordinators have kept Mars time on and off at least since 1997
|
||||
for the Mars Pathfinder mission. Some of their family members have
|
||||
also adapted to Mars time. Dozens of special Mars watches were built
|
||||
for JPL workers who kept Mars time during the Mars Exploration
|
||||
Rovers mission (2004). These timepieces look like normal Seikos and
|
||||
Citizens but use Mars seconds rather than terrestrial seconds.
|
||||
|
||||
A Mars solar day is called a "sol" and has a mean period equal to
|
||||
about 24 hours 39 minutes 35.244 seconds in terrestrial time. It is
|
||||
divided into a conventional 24-hour clock, so each Mars second equals
|
||||
about 1.02749125 terrestrial seconds.
|
||||
|
||||
The prime meridian of Mars goes through the center of the crater
|
||||
Airy-0, named in honor of the British astronomer who built the
|
||||
Greenwich telescope that defines Earth's prime meridian. Mean solar
|
||||
time on the Mars prime meridian is called Mars Coordinated Time (MTC).
|
||||
|
||||
Each landed mission on Mars has adopted a different reference for
|
||||
solar time keeping, so there is no real standard for Mars time zones.
|
||||
For example, the Mars Exploration Rover project (2004) defined two
|
||||
time zones "Local Solar Time A" and "Local Solar Time B" for its two
|
||||
missions, each zone designed so that its time equals local true solar
|
||||
time at approximately the middle of the nominal mission. Such a "time
|
||||
zone" is not particularly suited for any application other than the
|
||||
mission itself.
|
||||
|
||||
Many calendars have been proposed for Mars, but none have achieved
|
||||
wide acceptance. Astronomers often use Mars Sol Date (MSD) which is a
|
||||
sequential count of Mars solar days elapsed since about 1873-12-29
|
||||
12:00 GMT.
|
||||
|
||||
The tz database does not currently support Mars time, but it is
|
||||
documented here in the hopes that support will be added eventually.
|
||||
|
||||
Sources:
|
||||
|
||||
Michael Allison and Robert Schmunk,
|
||||
"Technical Notes on Mars Solar Time as Adopted by the Mars24 Sunclock"
|
||||
<http://www.giss.nasa.gov/tools/mars24/help/notes.html> (2012-08-08).
|
||||
|
||||
Jia-Rui Chong, "Workdays Fit for a Martian", Los Angeles Times
|
||||
<http://articles.latimes.com/2004/jan/14/science/sci-marstime14>
|
||||
(2004-01-14), pp A1, A20-A21.
|
||||
|
||||
Tom Chmielewski, "Jet Lag Is Worse on Mars", The Atlantic (2015-02-26)
|
||||
<http://www.theatlantic.com/technology/archive/2015/02/jet-lag-is-worse-on-mars/386033/>
|
||||
|
||||
-----
|
||||
|
||||
This file is in the public domain, so clarified as of 2009-05-17 by
|
||||
Arthur David Olson.
|
||||
|
||||
-----
|
||||
Local Variables:
|
||||
coding: utf-8
|
||||
End:
|
||||
@ -26,7 +26,7 @@
|
||||
#
|
||||
# For data circa 1899, a common source is:
|
||||
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
|
||||
# http://www.jstor.org/stable/1774359
|
||||
# https://www.jstor.org/stable/1774359
|
||||
#
|
||||
# A reliable and entertaining source about time zones is
|
||||
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
|
||||
@ -218,7 +218,7 @@ Rule Egypt 2006 only - Sep 21 24:00 0 -
|
||||
# saving time in Egypt will end in the night of 2007-09-06 to 2007-09-07.
|
||||
# From Jesper Nørgaard Welen (2007-08-15): [The following agree:]
|
||||
# http://www.nentjes.info/Bill/bill5.htm
|
||||
# http://www.timeanddate.com/worldclock/city.html?n=53
|
||||
# https://www.timeanddate.com/worldclock/city.html?n=53
|
||||
# From Steffen Thorsen (2007-09-04): The official information...:
|
||||
# http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/0207000000000000001580.htm
|
||||
Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
|
||||
@ -256,8 +256,8 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
|
||||
# timeanddate[2] and another site I've found[3] also support that.
|
||||
#
|
||||
# [1] https://bugzilla.redhat.com/show_bug.cgi?id=492263
|
||||
# [2] http://www.timeanddate.com/worldclock/clockchange.html?n=53
|
||||
# [3] http://wwp.greenwichmeantime.com/time-zone/africa/egypt/
|
||||
# [2] https://www.timeanddate.com/worldclock/clockchange.html?n=53
|
||||
# [3] https://wwp.greenwichmeantime.com/time-zone/africa/egypt/
|
||||
|
||||
# From Arthur David Olson (2009-04-20):
|
||||
# In 2009 (and for the next several years), Ramadan ends before the fourth
|
||||
@ -267,10 +267,10 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
|
||||
# From Steffen Thorsen (2009-08-11):
|
||||
# We have been able to confirm the August change with the Egyptian Cabinet
|
||||
# Information and Decision Support Center:
|
||||
# http://www.timeanddate.com/news/time/egypt-dst-ends-2009.html
|
||||
# https://www.timeanddate.com/news/time/egypt-dst-ends-2009.html
|
||||
#
|
||||
# The Middle East News Agency
|
||||
# http://www.mena.org.eg/index.aspx
|
||||
# https://www.mena.org.eg/index.aspx
|
||||
# also reports "Egypt starts winter time on August 21"
|
||||
# today in article numbered "71, 11/08/2009 12:25 GMT."
|
||||
# Only the title above is available without a subscription to their service,
|
||||
@ -320,7 +320,7 @@ Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
|
||||
# Thursday of April.... Clocks will still be turned back for Ramadan, but
|
||||
# dates not yet announced....
|
||||
# http://almogaz.com/news/weird-news/2015/04/05/1947105 ...
|
||||
# http://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
|
||||
# https://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
|
||||
|
||||
# From Ahmed Nazmy (2015-04-20):
|
||||
# Egypt's ministers cabinet just announced ... that it will cancel DST at
|
||||
@ -447,11 +447,11 @@ Zone Africa/Monrovia -0:43:08 - LMT 1882
|
||||
|
||||
# From Even Scharning (2012-11-10):
|
||||
# Libya set their time one hour back at 02:00 on Saturday November 10.
|
||||
# http://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/
|
||||
# https://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/
|
||||
# Here is an official source [in Arabic]: http://ls.ly/fb6Yc
|
||||
#
|
||||
# Steffen Thorsen forwarded a translation (2012-11-10) in
|
||||
# http://mm.icann.org/pipermail/tz/2012-November/018451.html
|
||||
# https://mm.icann.org/pipermail/tz/2012-November/018451.html
|
||||
#
|
||||
# From Tim Parenti (2012-11-11):
|
||||
# Treat the 2012-11-10 change as a zone change from UTC+2 to UTC+1.
|
||||
@ -462,7 +462,7 @@ Zone Africa/Monrovia -0:43:08 - LMT 1882
|
||||
# From Even Scharning (2013-10-25):
|
||||
# The scheduled end of DST in Libya on Friday, October 25, 2013 was
|
||||
# cancelled yesterday....
|
||||
# http://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
|
||||
# https://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
|
||||
#
|
||||
# From Paul Eggert (2013-10-25):
|
||||
# For now, assume they're reverting to the pre-2012 rules of permanent UT +02.
|
||||
@ -515,7 +515,7 @@ Zone Africa/Tripoli 0:52:44 - LMT 1920
|
||||
# basis....
|
||||
# It seems that Mauritius observed daylight saving time from 1982-10-10 to
|
||||
# 1983-03-20 as well, but that was not successful....
|
||||
# http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
|
||||
# https://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
|
||||
|
||||
# From Alex Krivenyshev (2008-06-25):
|
||||
# http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b24128104d9845dabddd154508a0c/?content_id=0a7cee8b5d69a110VgnVCM1000000a04a8c0RCRD
|
||||
@ -583,7 +583,7 @@ Zone Africa/Tripoli 0:52:44 - LMT 1920
|
||||
# http://lexpress.mu/Story/3398~Beebeejaun---Les-objectifs-d-%C3%A9conomie-d-%C3%A9nergie-de-l-heure-d-%C3%A9t%C3%A9-ont-%C3%A9t%C3%A9-atteints-
|
||||
#
|
||||
# Our wrap-up:
|
||||
# http://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html
|
||||
# https://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html
|
||||
|
||||
# From Arthur David Olson (2009-07-11):
|
||||
# The "mauritius-dst-will-not-repeat" wrapup includes this:
|
||||
@ -615,7 +615,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# be one hour ahead of GMT between 1 June and 27 September, according to
|
||||
# Communication Minister and Government Spokesman, Khalid Naciri...."
|
||||
#
|
||||
# http://www.worldtimezone.net/dst_news/dst_news_morocco01.html
|
||||
# http://www.worldtimezone.com/dst_news/dst_news_morocco01.html
|
||||
# http://en.afrik.com/news11892.html
|
||||
|
||||
# From Alex Krivenyshev (2008-05-09):
|
||||
@ -628,7 +628,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
|
||||
# From Patrice Scattolin (2008-05-09):
|
||||
# According to this article:
|
||||
# http://www.avmaroc.com/actualite/heure-dete-comment-a127896.html
|
||||
# https://www.avmaroc.com/actualite/heure-dete-comment-a127896.html
|
||||
# (and republished here: <http://www.actu.ma/heure-dete-comment_i127896_0.html>)
|
||||
# the changes occur at midnight:
|
||||
#
|
||||
@ -650,7 +650,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# posted in English).
|
||||
#
|
||||
# The following Google query will generate many relevant hits:
|
||||
# http://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
|
||||
# https://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
|
||||
|
||||
# From Steffen Thorsen (2008-08-27):
|
||||
# Morocco will change the clocks back on the midnight between August 31
|
||||
@ -661,7 +661,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# http://www.menara.ma/fr/Actualites/Maroc/Societe/ci.retour_a_l_heure_gmt_a_partir_du_dimanche_31_aout_a_minuit_officiel_.default
|
||||
#
|
||||
# We have some further details posted here:
|
||||
# http://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html
|
||||
# https://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html
|
||||
|
||||
# From Steffen Thorsen (2009-03-17):
|
||||
# Morocco will observe DST from 2009-06-01 00:00 to 2009-08-21 00:00 according
|
||||
@ -671,7 +671,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# (French)
|
||||
#
|
||||
# Our summary:
|
||||
# http://www.timeanddate.com/news/time/morocco-starts-dst-2009.html
|
||||
# https://www.timeanddate.com/news/time/morocco-starts-dst-2009.html
|
||||
|
||||
# From Alexander Krivenyshev (2009-03-17):
|
||||
# Here is a link to official document from Royaume du Maroc Premier Ministre,
|
||||
@ -694,7 +694,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# http://www.lavieeco.com/actualites/4099-le-maroc-passera-a-l-heure-d-ete-gmt1-le-2-mai.html
|
||||
# (French)
|
||||
# Our page:
|
||||
# http://www.timeanddate.com/news/time/morocco-starts-dst-2010.html
|
||||
# https://www.timeanddate.com/news/time/morocco-starts-dst-2010.html
|
||||
|
||||
# From Dan Abitol (2011-03-30):
|
||||
# ...Rules for Africa/Casablanca are the following (24h format)
|
||||
@ -711,7 +711,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# They said that the decision was already taken.
|
||||
#
|
||||
# More articles in the press
|
||||
# http://www.yabiladi.com/articles/details/5058/secret-l-heure-d-ete-maroc-leve.html
|
||||
# https://www.yabiladi.com/articles/details/5058/secret-l-heure-d-ete-maroc-leve.html
|
||||
# http://www.lematin.ma/Actualite/Express/Article.asp?id=148923
|
||||
# http://www.lavieeco.com/actualite/Le-Maroc-passe-sur-GMT%2B1-a-partir-de-dim
|
||||
|
||||
@ -803,7 +803,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# 1433 (18 April 2012) and the decision of the Head of Government of
|
||||
# 16 N. 3-29-15 Chaaban 1435 (4 June 2015).
|
||||
# Source (french):
|
||||
# http://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/
|
||||
# https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/
|
||||
#
|
||||
# From Milamber (2015-06-09):
|
||||
# http://www.mmsp.gov.ma/fr/actualites.aspx?id=863
|
||||
@ -812,7 +812,7 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
|
||||
# [The gov.ma announcement] would (probably) make the switch on 2015-07-19 go
|
||||
# from 03:00 to 04:00 rather than from 02:00 to 03:00, as in the patch....
|
||||
# I think the patch is correct and the quoted text is wrong; the text in
|
||||
# <http://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/> agrees
|
||||
# <https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/> agrees
|
||||
# with the patch.
|
||||
|
||||
# From Paul Eggert (2015-06-08):
|
||||
@ -937,9 +937,17 @@ Link Africa/Maputo Africa/Kigali # Rwanda
|
||||
Link Africa/Maputo Africa/Lubumbashi # E Dem. Rep. of Congo
|
||||
Link Africa/Maputo Africa/Lusaka # Zambia
|
||||
|
||||
|
||||
# Namibia
|
||||
# The 1994-04-03 transition is from Shanks & Pottenger.
|
||||
# Shanks & Pottenger report no DST after 1998-04; go with IATA.
|
||||
|
||||
# From Arthur David Olson (2017-08-09):
|
||||
# The text of the "Namibia Time Act, 1994" is available online at
|
||||
# www.lac.org.na/laws/1994/811.pdf
|
||||
# and includes this nugget:
|
||||
# Notwithstanding the provisions of subsection (2) of section 1, the
|
||||
# first winter period after the commencement of this Act shall
|
||||
# commence at OOhOO on Monday 21 March 1994 and shall end at 02h00 on
|
||||
# Sunday 4 September 1994.
|
||||
|
||||
# From Petronella Sibeene (2007-03-30):
|
||||
# http://allafrica.com/stories/200703300178.html
|
||||
@ -955,19 +963,30 @@ Link Africa/Maputo Africa/Lusaka # Zambia
|
||||
# observes Botswana time, we have no details about historical practice.
|
||||
# In the meantime people there can use Africa/Gaborone.
|
||||
# See: Immanuel S. The Namibian. 2017-02-23.
|
||||
# http://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
|
||||
# https://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
|
||||
|
||||
# From Steffen Thorsen (2017-08-09):
|
||||
# Namibia is going to change their time zone to what is now their DST:
|
||||
# https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
|
||||
# This video is from the government decision:
|
||||
# https://www.nbc.na/news/na-passes-namibia-time-bill-repealing-1994-namibia-time-act.8665
|
||||
# We have made the assumption so far that they will change their time zone at
|
||||
# the same time they would normally start DST, the first Sunday in September:
|
||||
# https://www.timeanddate.com/news/time/namibia-new-time-zone.html
|
||||
|
||||
# RULE NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Namibia 1994 max - Sep Sun>=1 2:00 1:00 S
|
||||
Rule Namibia 1995 max - Apr Sun>=1 2:00 0 -
|
||||
Rule Namibia 1994 only - Mar 21 0:00 0 -
|
||||
Rule Namibia 1994 2016 - Sep Sun>=1 2:00 1:00 S
|
||||
Rule Namibia 1995 2017 - Apr Sun>=1 2:00 0 -
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
|
||||
1:30 - +0130 1903 Mar
|
||||
2:00 - SAST 1942 Sep 20 2:00
|
||||
2:00 1:00 SAST 1943 Mar 21 2:00
|
||||
2:00 - SAST 1990 Mar 21 # independence
|
||||
2:00 - CAT 1994 Apr 3
|
||||
1:00 Namibia WA%sT
|
||||
2:00 - CAT 1994 Mar 21 0:00
|
||||
1:00 Namibia WA%sT 2017 Sep 3 2:00
|
||||
2:00 - CAT
|
||||
|
||||
# Niger
|
||||
# See Africa/Lagos.
|
||||
@ -1054,14 +1073,24 @@ Link Africa/Johannesburg Africa/Mbabane # Swaziland
|
||||
# no information
|
||||
|
||||
# Sudan
|
||||
#
|
||||
|
||||
# From <http://www.sunanews.net/sn13jane.html>
|
||||
# Sudan News Agency (2000-01-13),
|
||||
# also reported by Michaël De Beukelaer-Dossche via Steffen Thorsen:
|
||||
# Clocks will be moved ahead for 60 minutes all over the Sudan as of noon
|
||||
# Saturday.... This was announced Thursday by Caretaker State Minister for
|
||||
# Manpower Abdul-Rahman Nur-Eddin.
|
||||
|
||||
# From Ahmed Atyya, National Telecommunications Corp. (NTC), Sudan (2017-10-17):
|
||||
# ... the Republic of Sudan is going to change the time zone from (GMT+3:00)
|
||||
# to (GMT+ 2:00) starting from Wednesday 1 November 2017.
|
||||
#
|
||||
# From Paul Eggert (2017-10-18):
|
||||
# A scanned copy (in Arabic) of Cabinet Resolution No. 352 for the
|
||||
# year 2017 can be found as an attachment in email today from Yahia
|
||||
# Abdalla of NTC, archived at:
|
||||
# https://mm.icann.org/pipermail/tz/2017-October/025333.html
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Sudan 1970 only - May 1 0:00 1:00 S
|
||||
Rule Sudan 1970 1985 - Oct 15 0:00 0 -
|
||||
@ -1070,10 +1099,14 @@ Rule Sudan 1972 1985 - Apr lastSun 0:00 1:00 S
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Africa/Khartoum 2:10:08 - LMT 1931
|
||||
2:00 Sudan CA%sT 2000 Jan 15 12:00
|
||||
3:00 - EAT
|
||||
3:00 - EAT 2017 Nov 1
|
||||
2:00 - CAT
|
||||
|
||||
# South Sudan
|
||||
Link Africa/Khartoum Africa/Juba
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Africa/Juba 2:06:28 - LMT 1931
|
||||
2:00 Sudan CA%sT 2000 Jan 15 12:00
|
||||
3:00 - EAT
|
||||
|
||||
# Swaziland
|
||||
# See Africa/Johannesburg.
|
||||
@ -1111,11 +1144,11 @@ Link Africa/Khartoum Africa/Juba
|
||||
# According to several news sources, Tunisia will not observe DST this year.
|
||||
# (Arabic)
|
||||
# http://www.elbashayer.com/?page=viewn&nid=42546
|
||||
# http://www.babnet.net/kiwidetail-15295.asp
|
||||
# https://www.babnet.net/kiwidetail-15295.asp
|
||||
#
|
||||
# We have also confirmed this with the US embassy in Tunisia.
|
||||
# We have a wrap-up about this on the following page:
|
||||
# http://www.timeanddate.com/news/time/tunisia-cancels-dst-2009.html
|
||||
# https://www.timeanddate.com/news/time/tunisia-cancels-dst-2009.html
|
||||
|
||||
# From Alexander Krivenyshev (2009-03-17):
|
||||
# Here is a link to Tunis Afrique Presse News Agency
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
# Heard Island, McDonald Islands (uninhabited)
|
||||
# previously sealers and scientific personnel wintered
|
||||
# Margaret Turner reports
|
||||
# http://web.archive.org/web/20021204222245/http://www.dstc.qut.edu.au/DST/marg/daylight.html
|
||||
# https://web.archive.org/web/20021204222245/http://www.dstc.qut.edu.au/DST/marg/daylight.html
|
||||
# (1999-09-30) that they're UT +05, with no DST;
|
||||
# presumably this is when they have visitors.
|
||||
#
|
||||
@ -47,7 +47,7 @@
|
||||
# http://www.aad.gov.au/default.asp?casid=37079
|
||||
#
|
||||
# We have more background information here:
|
||||
# http://www.timeanddate.com/news/time/antarctica-new-times.html
|
||||
# https://www.timeanddate.com/news/time/antarctica-new-times.html
|
||||
|
||||
# From Steffen Thorsen (2010-03-10):
|
||||
# We got these changes from the Australian Antarctic Division: ...
|
||||
@ -62,7 +62,7 @@
|
||||
# - Mawson station stays on UTC+5.
|
||||
#
|
||||
# Background:
|
||||
# http://www.timeanddate.com/news/time/antartica-time-changes-2010.html
|
||||
# https://www.timeanddate.com/news/time/antartica-time-changes-2010.html
|
||||
|
||||
# From Steffen Thorsen (2016-10-28):
|
||||
# Australian Antarctica Division informed us that Casey changed time
|
||||
@ -145,7 +145,7 @@ Zone Indian/Kerguelen 0 - -00 1950 # Port-aux-Français
|
||||
#
|
||||
# year-round base in the main continent
|
||||
# Dumont d'Urville, Île des Pétrels, -6640+14001, since 1956-11
|
||||
# <http://en.wikipedia.org/wiki/Dumont_d'Urville_Station> (2005-12-05)
|
||||
# <https://en.wikipedia.org/wiki/Dumont_d'Urville_Station> (2005-12-05)
|
||||
#
|
||||
# Another base at Port-Martin, 50km east, began operation in 1947.
|
||||
# It was destroyed by fire on 1952-01-14.
|
||||
|
||||
@ -26,7 +26,7 @@
|
||||
#
|
||||
# For data circa 1899, a common source is:
|
||||
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
|
||||
# http://www.jstor.org/stable/1774359
|
||||
# https://www.jstor.org/stable/1774359
|
||||
#
|
||||
# For Russian data circa 1919, a source is:
|
||||
# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
|
||||
@ -75,8 +75,8 @@ Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
|
||||
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
|
||||
Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
|
||||
Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 -
|
||||
Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S
|
||||
Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 -
|
||||
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S
|
||||
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
|
||||
|
||||
# Afghanistan
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
@ -109,13 +109,17 @@ Zone Asia/Kabul 4:36:48 - LMT 1890
|
||||
# or
|
||||
# (brief)
|
||||
# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S
|
||||
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
|
||||
3:00 - +03 1957 Mar
|
||||
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
|
||||
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
|
||||
4:00 - +04 1997
|
||||
4:00 RussiaAsia +04/+05
|
||||
4:00 RussiaAsia +04/+05 2011
|
||||
4:00 Armenia +04/+05
|
||||
|
||||
# Azerbaijan
|
||||
|
||||
@ -127,7 +131,7 @@ Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
|
||||
# From Steffen Thorsen (2016-03-17):
|
||||
# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
|
||||
# daylight saving time....
|
||||
# http://www.azernews.az/azerbaijan/94137.html
|
||||
# https://www.azernews.az/azerbaijan/94137.html
|
||||
# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
|
||||
# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
|
||||
|
||||
@ -168,11 +172,11 @@ Zone Asia/Baku 3:19:24 - LMT 1924 May 2
|
||||
# the 19th and 20th, and they have not set the end date yet.
|
||||
#
|
||||
# Some sources:
|
||||
# http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
|
||||
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
|
||||
# http://bdnews24.com/details.php?id=85889&cid=2
|
||||
#
|
||||
# Our wrap-up:
|
||||
# http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
|
||||
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
|
||||
|
||||
# From A. N. M. Kamrus Saadat (2009-06-15):
|
||||
# Finally we've got the official mail regarding DST start time where DST start
|
||||
@ -258,9 +262,15 @@ Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
|
||||
|
||||
# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
|
||||
|
||||
# From Paul Eggert (2017-04-20):
|
||||
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
|
||||
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
|
||||
# of Greenwich." This refers to the period before Burma's transition to +0630,
|
||||
# a transition for which Shanks is the only source.
|
||||
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon
|
||||
6:24:40 - RMT 1920 # Rangoon Mean Time?
|
||||
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
|
||||
6:24:47 - RMT 1920 # Rangoon local time
|
||||
6:30 - +0630 1942 May
|
||||
9:00 - +09 1945 May 3
|
||||
6:30 - +0630
|
||||
@ -317,7 +327,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
|
||||
#
|
||||
# From Jesper Nørgaard Welen (2006-07-14):
|
||||
# I have investigated the timezones around 1970 on the
|
||||
# http://www.astro.com/atlas site [with provinces and county
|
||||
# https://www.astro.com/atlas site [with provinces and county
|
||||
# boundaries summarized below].... A few other exceptions were two
|
||||
# counties on the Sichuan side of the Xizang-Sichuan border,
|
||||
# counties Dege and Baiyu which lies on the Sichuan side and are
|
||||
@ -469,7 +479,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
|
||||
|
||||
# From David Cochrane (2014-03-26):
|
||||
# Just a confirmation that Ürümqi time was implemented in Ürümqi on 1 Feb 1986:
|
||||
# http://content.time.com/time/magazine/article/0,9171,960684,00.html
|
||||
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
|
||||
|
||||
# From Luther Ma (2014-04-22):
|
||||
# I have interviewed numerous people of various nationalities and from
|
||||
@ -626,7 +636,7 @@ Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
|
||||
# (both in Okinawa) adopt the Western Standard Time which is based on
|
||||
# 120E. The adoption began from Jan 1, 1896. The original text can be
|
||||
# found on Wikisource:
|
||||
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
|
||||
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
|
||||
# ... This could be the first adoption of time zone in Taiwan, because
|
||||
# during the Qing Dynasty, it seems that there was no time zone
|
||||
# declared officially.
|
||||
@ -639,7 +649,7 @@ Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
|
||||
# territory, including later occupations, adopt Japan Central Time
|
||||
# (UTC+9). The adoption began on Oct 1, 1937. The original text can
|
||||
# be found on Wikisource:
|
||||
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
|
||||
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
|
||||
#
|
||||
# That is, the time zone of Taipei switched to UTC+9 on Oct 1, 1937.
|
||||
|
||||
@ -775,6 +785,12 @@ Zone Asia/Macau 7:34:20 - LMT 1912 Jan 1
|
||||
# Looks like the time zone split in Cyprus went through last night.
|
||||
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
|
||||
|
||||
# From Paul Eggert (2017-10-18):
|
||||
# Northern Cyprus will reinstate winter time on October 29, thus
|
||||
# staying in sync with the rest of Cyprus. See: Anastasiou A.
|
||||
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
|
||||
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
|
||||
Rule Cyprus 1975 only - Oct 12 0:00 0 -
|
||||
@ -792,7 +808,8 @@ Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
|
||||
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
|
||||
2:00 Cyprus EE%sT 1998 Sep
|
||||
2:00 EUAsia EE%sT 2016 Sep 8
|
||||
3:00 - +03
|
||||
3:00 - +03 2017 Oct 29 1:00u
|
||||
2:00 EUAsia EE%sT
|
||||
|
||||
# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
|
||||
# However, for various reasons many users expect to find it under Europe.
|
||||
@ -852,7 +869,7 @@ Zone Asia/Tbilisi 2:59:11 - LMT 1880
|
||||
|
||||
# From João Carrascalão, brother of the former governor of East Timor, in
|
||||
# East Timor may be late for its millennium
|
||||
# <http://etan.org/et99c/december/26-31/30ETMAY.htm> (1999-12-26/31):
|
||||
# <https://etan.org/et99c/december/26-31/30ETMAY.htm> (1999-12-26/31):
|
||||
# Portugal tried to change the time forward in 1974 because the sun
|
||||
# rises too early but the suggestion raised a lot of problems with the
|
||||
# Timorese and I still don't think it would work today because it
|
||||
@ -880,21 +897,62 @@ Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1
|
||||
# India
|
||||
|
||||
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic
|
||||
# http://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
|
||||
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
|
||||
# (2015-12-22):
|
||||
# In January 1906, several thousand cotton-mill workers rioted on the
|
||||
# outskirts of Bombay.... They were protesting the proposed abolition of
|
||||
# local time in favor of Indian Standard Time.... Journalists called this
|
||||
# dispute the "Battle of the Clocks." It lasted nearly half a century.
|
||||
|
||||
# From Paul Eggert (2017-04-20):
|
||||
# Good luck trying to nail down old timekeeping records in India.
|
||||
# "... in the nineteenth century ... Madras Observatory took its magnetic
|
||||
# measurements on Göttingen time, its meteorological measurements on Madras
|
||||
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
|
||||
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
|
||||
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
|
||||
# "A more potent cause of resistance to the general adoption of the present
|
||||
# standard time lies in the fact that it is Madras time. The citizen of
|
||||
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
|
||||
# his city being the Capital of India, and - for a part of the year - the Seat
|
||||
# of the Supreme Government, alike look down on Madras, and refuse to change
|
||||
# the time they are using, for that of what they regard as a benighted
|
||||
# Presidency; while Madras, having for long given the standard time to the
|
||||
# rest of India, would resist the adoption of any other Indian standard in its
|
||||
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
|
||||
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
|
||||
#
|
||||
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
|
||||
# only government observatory' - was suggested as a standard railway time,
|
||||
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
|
||||
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
|
||||
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
|
||||
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
|
||||
#
|
||||
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
|
||||
# https://archive.org/details/in.ernet.dli.2015.282212
|
||||
# This lists +052110 as Madras local time used in railways, and says that on
|
||||
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
|
||||
# municipalities retained their former time, and the time in Calcutta
|
||||
# continued to depend on whether you were at the railway station or at
|
||||
# government offices. Government time was at +055320 (according to Shanks) or
|
||||
# at +0554 (according to the Indian Year Book). Railway time is more
|
||||
# appropriate for our purposes, as it was better documented, it is what we do
|
||||
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
|
||||
# consistent in the region now identified by Asia/Kolkata. So, use railway
|
||||
# time for 1870-1941. Shanks is our only (and dubious) source for the
|
||||
# 1941-1945 data.
|
||||
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
|
||||
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
|
||||
6:30 - +0630 1942 May 15
|
||||
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
|
||||
5:53:20 - HMT 1870 # Howrah Mean Time?
|
||||
5:21:10 - MMT 1906 Jan 1 # Madras local time
|
||||
5:30 - IST 1941 Oct
|
||||
5:30 1:00 +0630 1942 May 15
|
||||
5:30 - IST 1942 Sep
|
||||
5:30 1:00 +0630 1945 Oct 15
|
||||
5:30 - IST
|
||||
# The following are like Asia/Kolkata:
|
||||
# Since 1970 the following are like Asia/Kolkata:
|
||||
# Andaman Is
|
||||
# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
|
||||
# Nicobar Is
|
||||
@ -1036,7 +1094,7 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
|
||||
# From Reuters (2007-09-16), with a heads-up from Jesper Nørgaard Welen:
|
||||
# ... the Guardian Council ... approved a law on Sunday to re-introduce
|
||||
# daylight saving time ...
|
||||
# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
|
||||
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
|
||||
#
|
||||
# From Roozbeh Pournader (2007-11-05):
|
||||
# This is quoted from Official Gazette of the Islamic Republic of
|
||||
@ -1135,7 +1193,7 @@ Zone Asia/Tehran 3:25:44 - LMT 1916
|
||||
# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
|
||||
#
|
||||
# We have published a short article in English about the change:
|
||||
# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
|
||||
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Iraq 1982 only - May 1 0:00 1:00 D
|
||||
@ -1443,12 +1501,12 @@ Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
|
||||
# From Yu-Cheng Chuang (2013-07-12):
|
||||
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
|
||||
# about standard time" ... The adoption began from Jan 1, 1896.
|
||||
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
|
||||
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
|
||||
#
|
||||
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
|
||||
# means the whole Japan territory, including later occupations, adopt Japan
|
||||
# Central Time (UTC+9). The adoption began on Oct 1, 1937.
|
||||
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
|
||||
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
|
||||
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
|
||||
@ -1510,7 +1568,7 @@ Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
|
||||
# Official, in Arabic:
|
||||
# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14
|
||||
# ... Our background/permalink about it
|
||||
# http://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
|
||||
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
|
||||
# ...
|
||||
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P
|
||||
# ... says midnight for the coming one and 1:00 for the ones in the future
|
||||
@ -1868,9 +1926,9 @@ Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
|
||||
# between 1987 and 1988 ...
|
||||
|
||||
# From Sanghyuk Jung (2014-10-29):
|
||||
# http://mm.icann.org/pipermail/tz/2014-October/021830.html
|
||||
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
|
||||
# According to the Korean Wikipedia
|
||||
# http://ko.wikipedia.org/wiki/한국_표준시
|
||||
# https://ko.wikipedia.org/wiki/한국_표준시
|
||||
# [oldid=12896437 2014-09-04 08:03 UTC]
|
||||
# DST in Republic of Korea was as follows.... And I checked old
|
||||
# newspapers in Korean, all articles correspond with data in Wikipedia.
|
||||
@ -2092,7 +2150,7 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
|
||||
# +08:00 instead. Different sources appear to disagree with the tz
|
||||
# database on this, e.g.:
|
||||
#
|
||||
# http://www.timeanddate.com/worldclock/city.html?n=1026
|
||||
# https://www.timeanddate.com/worldclock/city.html?n=1026
|
||||
# http://www.worldtimeserver.com/current_time_in_MN.aspx
|
||||
#
|
||||
# both say GMT+08:00.
|
||||
@ -2222,7 +2280,7 @@ Zone Asia/Kathmandu 5:41:16 - LMT 1920
|
||||
# help reduce load shedding by approving the closure of commercial centres at
|
||||
# 9pm and moving clocks forward by one hour for the next three months. ...."
|
||||
#
|
||||
# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html
|
||||
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
|
||||
# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
|
||||
|
||||
# From Arthur David Olson (2008-05-19):
|
||||
@ -2288,7 +2346,7 @@ Zone Asia/Kathmandu 5:41:16 - LMT 1920
|
||||
#
|
||||
# We have confirmed this year's end date with both with the Ministry of
|
||||
# Water and Power and the Pakistan Electric Power Company:
|
||||
# http://www.timeanddate.com/news/time/pakistan-ends-dst09.html
|
||||
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
|
||||
|
||||
# From Christoph Göhre (2009-10-01):
|
||||
# [T]he German Consulate General in Karachi reported me today that Pakistan
|
||||
@ -2470,7 +2528,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
#
|
||||
# We are not sure if Gaza will do the same, last year they had a different
|
||||
# end date, we will keep this page updated:
|
||||
# http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
|
||||
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
|
||||
|
||||
# From Alexander Krivenyshev (2009-09-02):
|
||||
# Seems that Gaza Strip will go back to Winter Time same date as West Bank.
|
||||
@ -2508,7 +2566,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
# the clocks were set back one hour at 2010-08-11 00:00:00 local time in
|
||||
# Gaza and the West Bank.
|
||||
# Some more background info:
|
||||
# http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
|
||||
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
|
||||
|
||||
# From Steffen Thorsen (2011-08-26):
|
||||
# Gaza and the West Bank did go back to standard time in the beginning of
|
||||
@ -2518,7 +2576,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
#
|
||||
# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217
|
||||
# Additional info:
|
||||
# http://www.timeanddate.com/news/time/palestine-dst-2011.html
|
||||
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
|
||||
|
||||
# From Alexander Krivenyshev (2011-08-27):
|
||||
# According to the article in The Jerusalem Post:
|
||||
@ -2528,7 +2586,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
# The Hamas government said on Saturday that it won't observe summertime after
|
||||
# the Muslim feast of Id al-Fitr, which begins on Tuesday..."
|
||||
# ...
|
||||
# http://www.jpost.com/MiddleEast/Article.aspx?id=235650
|
||||
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
|
||||
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html
|
||||
# The rules for Egypt are stolen from the 'africa' file.
|
||||
|
||||
@ -2549,7 +2607,7 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html
|
||||
#
|
||||
# Our brief summary:
|
||||
# http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
|
||||
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
|
||||
|
||||
# From Steffen Thorsen (2013-03-26):
|
||||
# The following news sources tells that Palestine will "start daylight saving
|
||||
@ -2569,11 +2627,11 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
|
||||
# From Steffen Thorsen (2015-03-03):
|
||||
# Sources such as http://www.alquds.com/news/article/view/id/548257
|
||||
# and http://www.raya.ps/ar/news/890705.html say Palestine areas will
|
||||
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
|
||||
# start DST on 2015-03-28 00:00 which is one day later than expected.
|
||||
#
|
||||
# From Paul Eggert (2015-03-03):
|
||||
# http://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
|
||||
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
|
||||
# says that the fall 2014 transition was Oct 23 at 24:00.
|
||||
|
||||
# From Hannah Kreitem (2016-03-09):
|
||||
@ -2597,8 +2655,8 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
#
|
||||
# From Paul Eggert (2016-10-19):
|
||||
# It's also consistent with predictions in the following URLs today:
|
||||
# http://www.timeanddate.com/time/change/gaza-strip/gaza
|
||||
# http://www.timeanddate.com/time/change/west-bank/hebron
|
||||
# https://www.timeanddate.com/time/change/gaza-strip/gaza
|
||||
# https://www.timeanddate.com/time/change/west-bank/hebron
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
|
||||
@ -2661,7 +2719,7 @@ Zone Asia/Hebron 2:20:23 - LMT 1900 Oct
|
||||
# Philippines, issued a proclamation announcing that 1844-12-30 was to
|
||||
# be immediately followed by 1845-01-01; see R.H. van Gent's
|
||||
# History of the International Date Line
|
||||
# http://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
|
||||
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
|
||||
# The rest of the data entries are from Shanks & Pottenger.
|
||||
|
||||
# From Jesper Nørgaard Welen (2006-04-26):
|
||||
@ -2925,7 +2983,7 @@ Rule Syria 2007 only - Nov Fri>=1 0:00 0 -
|
||||
# We have not found any sources saying anything about when DST ends this year.
|
||||
#
|
||||
# Our summary
|
||||
# http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
|
||||
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
|
||||
|
||||
# From Steffen Thorsen (2009-10-27):
|
||||
# The Syrian Arab News Network on 2009-09-29 reported that Syria will
|
||||
@ -2952,7 +3010,7 @@ Rule Syria 2007 only - Nov Fri>=1 0:00 0 -
|
||||
# http://www.sana.sy/ara/2/2012/03/26/408215.htm
|
||||
#
|
||||
# Our brief summary:
|
||||
# http://www.timeanddate.com/news/time/syria-dst-2012.html
|
||||
# https://www.timeanddate.com/news/time/syria-dst-2012.html
|
||||
|
||||
# From Arthur David Olson (2012-03-27):
|
||||
# Assume last Friday in March going forward XXX.
|
||||
@ -3035,7 +3093,7 @@ Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2
|
||||
# is quoted verbatim in:
|
||||
# http://www.thoigian.com.vn/?mPage=P80D01
|
||||
# is translated by Brian Inglis in:
|
||||
# http://mm.icann.org/pipermail/tz/2014-October/021654.html
|
||||
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
|
||||
# and is the basis for the information below.
|
||||
#
|
||||
# The 1906 transition was effective July 1 and standardized Indochina to
|
||||
|
||||
@ -293,7 +293,7 @@ Zone Indian/Cocos 6:27:40 - LMT 1900
|
||||
# http://www.fiji.gov.fj/index.php?option=com_content&view=article&id=1096:3310-cabinet-approves-change-in-daylight-savings-dates&catid=49:cabinet-releases&Itemid=166
|
||||
#
|
||||
# A bit more background info here:
|
||||
# http://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
|
||||
# https://www.timeanddate.com/news/time/fiji-dst-ends-march-2010.html
|
||||
|
||||
# From Alexander Krivenyshev (2010-10-24):
|
||||
# According to Radio Fiji and Fiji Times online, Fiji will end DST 3
|
||||
@ -357,9 +357,12 @@ Zone Indian/Cocos 6:27:40 - LMT 1900
|
||||
# clocks go forward an hour at 2am to 3am.... Daylight Saving will
|
||||
# end at 3.00am on Sunday 15th January 2017."
|
||||
|
||||
# From Paul Eggert (2016-10-03):
|
||||
# For now, guess DST from 02:00 the first Sunday in November to
|
||||
# 03:00 the third Sunday in January. Although ad hoc, it matches
|
||||
# From Paul Eggert (2017-08-21):
|
||||
# Dominic Fok writes (2017-08-20) that DST ends 2018-01-14, citing
|
||||
# Extraordinary Government of Fiji Gazette Supplement No. 21 (2017-08-27),
|
||||
# [Legal Notice No. 41] of an order of the previous day by J Usamate.
|
||||
# For now, guess DST from 02:00 the first Sunday in November to 03:00
|
||||
# the first Sunday on or after January 14. Although ad hoc, it matches
|
||||
# transitions since late 2014 and seems more likely to match future
|
||||
# practice than guessing no DST.
|
||||
|
||||
@ -373,7 +376,7 @@ Rule Fiji 2011 only - Mar Sun>=1 3:00 0 -
|
||||
Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 -
|
||||
Rule Fiji 2014 only - Jan Sun>=18 2:00 0 -
|
||||
Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 S
|
||||
Rule Fiji 2015 max - Jan Sun>=15 3:00 0 -
|
||||
Rule Fiji 2015 max - Jan Sun>=14 3:00 0 -
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva
|
||||
12:00 Fiji +12/+13
|
||||
@ -557,7 +560,7 @@ Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
|
||||
# The World War II entries below are instead based on Arawa-Kieta.
|
||||
# The Japanese occupied Kieta in July 1942,
|
||||
# according to the Pacific War Online Encyclopedia
|
||||
# http://pwencycl.kgbudge.com/B/o/Bougainville.htm
|
||||
# https://pwencycl.kgbudge.com/B/o/Bougainville.htm
|
||||
# and seem to have controlled it until their 1945-08-21 surrender.
|
||||
#
|
||||
# The Autonomous Region of Bougainville switched from UT +10 to +11
|
||||
@ -579,7 +582,7 @@ Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown
|
||||
-8:00 - -08
|
||||
|
||||
# American Samoa
|
||||
Zone Pacific/Pago_Pago 12:37:12 - LMT 1879 Jul 5
|
||||
Zone Pacific/Pago_Pago 12:37:12 - LMT 1892 Jul 5
|
||||
-11:22:48 - LMT 1911
|
||||
-11:00 - SST # S=Samoa
|
||||
Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
|
||||
@ -595,7 +598,7 @@ Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
|
||||
# Sunday of April 2011."
|
||||
#
|
||||
# Background info:
|
||||
# http://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
|
||||
# https://www.timeanddate.com/news/time/samoa-dst-plan-2009.html
|
||||
#
|
||||
# Samoa's Daylight Saving Time Act 2009 is available here, but does not
|
||||
# contain any dates:
|
||||
@ -659,7 +662,7 @@ Rule WS 2011 only - Sep lastSat 3:00 1 D
|
||||
Rule WS 2012 max - Apr Sun>=1 4:00 0 S
|
||||
Rule WS 2012 max - Sep lastSun 3:00 1 D
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5
|
||||
Zone Pacific/Apia 12:33:04 - LMT 1892 Jul 5
|
||||
-11:26:56 - LMT 1911
|
||||
-11:30 - -1130 1950
|
||||
-11:00 WS -11/-10 2011 Dec 29 24:00
|
||||
@ -686,7 +689,7 @@ Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara
|
||||
# From Paul Eggert (2012-07-25)
|
||||
# A Google Books snippet of Appendix to the Journals of the House of
|
||||
# Representatives of New Zealand, Session 1948,
|
||||
# <http://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau
|
||||
# <https://books.google.com/books?id=ZaVCAQAAIAAJ>, page 65, says Tokelau
|
||||
# was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger
|
||||
# are off by an hour starting in 1901.
|
||||
|
||||
@ -701,8 +704,8 @@ Rule Tonga 1999 only - Oct 7 2:00s 1:00 S
|
||||
Rule Tonga 2000 only - Mar 19 2:00s 0 -
|
||||
Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 S
|
||||
Rule Tonga 2001 2002 - Jan lastSun 2:00 0 -
|
||||
Rule Tonga 2016 max - Nov Sun>=1 2:00 1:00 S
|
||||
Rule Tonga 2017 max - Jan Sun>=15 3:00 0 -
|
||||
Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 S
|
||||
Rule Tonga 2017 only - Jan Sun>=15 3:00 0 -
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Pacific/Tongatapu 12:19:20 - LMT 1901
|
||||
12:20 - +1220 1941
|
||||
@ -756,7 +759,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901
|
||||
# Operation Fishbowl shot (Tightrope, 1962-11-04).... [See] Herman Hoerlin,
|
||||
# "The United States High-Altitude Test Experience: A Review Emphasizing the
|
||||
# Impact on the Environment", Los Alamos LA-6405, Oct 1976.
|
||||
# http://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf
|
||||
# https://www.fas.org/sgp/othergov/doe/lanl/docs1/00322994.pdf
|
||||
# See the table on page 4 where he lists GMT and local times for the tests; a
|
||||
# footnote for the JI tests reads that local time is "JI time = Hawaii Time
|
||||
# Minus One Hour".
|
||||
@ -822,7 +825,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
#
|
||||
# For data circa 1899, a common source is:
|
||||
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
|
||||
# http://www.jstor.org/stable/1774359
|
||||
# https://www.jstor.org/stable/1774359
|
||||
#
|
||||
# A reliable and entertaining source about time zones is
|
||||
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
|
||||
@ -969,7 +972,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# AEST ACST AWST AEDT ACDT
|
||||
#
|
||||
# Parliamentary Library (2008-11-10)
|
||||
# http://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf
|
||||
# https://www.aph.gov.au/binaries/library/pubs/rp/2008-09/09rp14.pdf
|
||||
# EST CST WST preferred for standard time; AEST AEDT ACST ACDT also used
|
||||
#
|
||||
# The Transport Safety Bureau has an extensive series of accident reports,
|
||||
@ -1005,13 +1008,13 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
#
|
||||
# NSW (including LHI and Broken Hill):
|
||||
# Standard Time Act 1987 (updated 1995-04-04)
|
||||
# http://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html
|
||||
# https://www.austlii.edu.au/au/legis/nsw/consol_act/sta1987137/index.html
|
||||
# ACT
|
||||
# Standard Time and Summer Time Act 1972
|
||||
# http://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html
|
||||
# https://www.austlii.edu.au/au/legis/act/consol_act/stasta1972279/index.html
|
||||
# SA
|
||||
# Standard Time Act, 1898
|
||||
# http://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html
|
||||
# https://www.austlii.edu.au/au/legis/sa/consol_act/sta1898137/index.html
|
||||
|
||||
# From David Grosz (2005-06-13):
|
||||
# It was announced last week that Daylight Saving would be extended by
|
||||
@ -1306,7 +1309,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# http://abc.net.au/news/regionals/neweng/monthly/regeng-22jul1999-1.htm
|
||||
# (1999-07-22). For now, we'll wait to see if this really happens.
|
||||
#
|
||||
# Victoria will following NSW. See:
|
||||
# Victoria will follow NSW. See:
|
||||
# Vic to extend daylight saving (1999-07-28)
|
||||
# http://abc.net.au/local/news/olympics/1999/07/item19990728112314_1.htm
|
||||
#
|
||||
@ -1409,7 +1412,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# the ACT for all 52 weeks of the year...
|
||||
#
|
||||
# We have a wrap-up here:
|
||||
# http://www.timeanddate.com/news/time/south-australia-extends-dst.html
|
||||
# https://www.timeanddate.com/news/time/south-australia-extends-dst.html
|
||||
###############################################################################
|
||||
|
||||
# New Zealand
|
||||
@ -1463,7 +1466,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# From Paul Eggert (2014-07-14):
|
||||
# Chatham Island time was formally standardized on 1957-01-01 by
|
||||
# New Zealand's Standard Time Amendment Act 1956 (1956-10-26).
|
||||
# http://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf
|
||||
# https://www.austlii.edu.au/nz/legis/hist_act/staa19561956n100244.pdf
|
||||
# According to Google Books snippet view, a speaker in the New Zealand
|
||||
# parliamentary debates in 1956 said "Clause 78 makes provision for standard
|
||||
# time in the Chatham Islands. The time there is 45 minutes in advance of New
|
||||
@ -1578,7 +1581,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# the Norfolk Island Museum and the Australian Bureau of Meteorology's
|
||||
# Norfolk Island station, and found no record of Norfolk observing DST
|
||||
# other than in 1974/5. See:
|
||||
# http://www.timeanddate.com/time/australia/norfolk-island.html
|
||||
# https://www.timeanddate.com/time/australia/norfolk-island.html
|
||||
|
||||
# Pitcairn
|
||||
|
||||
@ -1606,11 +1609,13 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
|
||||
# (Western) Samoa and American Samoa
|
||||
|
||||
# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
|
||||
# that in 1879 the King of Samoa decided to change
|
||||
# Howse writes (p 153) that after the 1879 standardization on Antipodean
|
||||
# time by the British governor of Fiji, the King of Samoa decided to change
|
||||
# "the date in his kingdom from the Antipodean to the American system,
|
||||
# ordaining - by a masterpiece of diplomatic flattery - that
|
||||
# the Fourth of July should be celebrated twice in that year."
|
||||
# This happened in 1892, according to the Evening News (Sydney) of 1892-07-20.
|
||||
# https://www.staff.science.uu.nl/~gent0113/idl/idl.htm
|
||||
|
||||
# Although Shanks & Pottenger says they both switched to UT -11:30
|
||||
# in 1911, and to -11 in 1950. many earlier sources give -11
|
||||
@ -1621,6 +1626,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# day in 2011. Assume also that the Samoas follow the US and New
|
||||
# Zealand's "ST"/"DT" style of daylight-saving abbreviations.
|
||||
|
||||
|
||||
# Tonga
|
||||
|
||||
# From Paul Eggert (1996-01-22):
|
||||
@ -1715,6 +1721,15 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# Assume Tonga will observe DST from the first Sunday in November at 02:00
|
||||
# through the third Sunday in January at 03:00, like Fiji, for now.
|
||||
|
||||
# From David Wade (2017-10-18):
|
||||
# In August government was disolved by the King. The current prime minister
|
||||
# continued in office in care taker mode. It is easy to see that few
|
||||
# decisions will be made until elections 16th November.
|
||||
#
|
||||
# From Paul Eggert (2017-10-18):
|
||||
# For now, guess that DST is discontinued. That's what the IATA is guessing.
|
||||
|
||||
|
||||
# Wake
|
||||
|
||||
# From Vernice Anderson, Personal Secretary to Philip Jessup,
|
||||
@ -1727,7 +1742,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# making calculation of time in Washington difficult if not almost
|
||||
# impossible.
|
||||
#
|
||||
# http://www.trumanlibrary.org/wake/meeting.htm
|
||||
# https://www.trumanlibrary.org/oralhist/andrsonv.htm
|
||||
|
||||
# From Paul Eggert (2003-03-23):
|
||||
# We have no other report of DST in Wake Island, so omit this info for now.
|
||||
@ -1755,7 +1770,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
|
||||
# an international standard, there are some places on the high seas where the
|
||||
# correct date is ambiguous.
|
||||
|
||||
# From Wikipedia <http://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
|
||||
# From Wikipedia <https://en.wikipedia.org/wiki/Time_zone> (2005-08-31):
|
||||
# Before 1920, all ships kept local apparent time on the high seas by setting
|
||||
# their clocks at night or at the morning sight so that, given the ship's
|
||||
# speed and direction, it would be 12 o'clock when the Sun crossed the ship's
|
||||
|
||||
@ -61,7 +61,9 @@ Link America/Sao_Paulo Brazil/East
|
||||
Link America/Manaus Brazil/West
|
||||
Link America/Halifax Canada/Atlantic
|
||||
Link America/Winnipeg Canada/Central
|
||||
Link America/Regina Canada/East-Saskatchewan
|
||||
# This line is commented out, as the name exceeded the 14-character limit
|
||||
# and was an unused misnomer.
|
||||
#Link America/Regina Canada/East-Saskatchewan
|
||||
Link America/Toronto Canada/Eastern
|
||||
Link America/Edmonton Canada/Mountain
|
||||
Link America/St_Johns Canada/Newfoundland
|
||||
|
||||
@ -181,7 +181,7 @@ Zone Africa/Lome 0:04:52 - LMT 1893
|
||||
# with the date that it took effect, namely 1912-01-01.
|
||||
#
|
||||
Zone Africa/Luanda 0:52:56 - LMT 1892
|
||||
0:52:04 - +005204 1912 Jan 1
|
||||
0:52:04 - LMT 1912 Jan 1 # Luanda Mean Time?
|
||||
1:00 - WAT
|
||||
|
||||
# Democratic Republic of the Congo (east)
|
||||
@ -540,10 +540,10 @@ Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2
|
||||
|
||||
# Guernsey
|
||||
# Data from Joseph S. Myers
|
||||
# http://mm.icann.org/pipermail/tz/2013-September/019883.html
|
||||
# https://mm.icann.org/pipermail/tz/2013-September/019883.html
|
||||
# References to be added
|
||||
# LMT Location - 49.27N -2.33E - St.Peter Port
|
||||
Zone Europe/Guernsey -0:09:19 - LMT 1913 Jun 18
|
||||
# LMT is for Town Church, St. Peter Port, 49 degrees 27'17"N 2 degrees 32'10"W
|
||||
Zone Europe/Guernsey -0:10:09 - LMT 1913 Jun 18
|
||||
0:00 GB-Eire %s 1940 Jul 2
|
||||
1:00 C-Eur CE%sT 1945 May 8
|
||||
0:00 GB-Eire %s 1968 Oct 27
|
||||
@ -555,11 +555,11 @@ Zone Europe/Guernsey -0:09:19 - LMT 1913 Jun 18
|
||||
#
|
||||
# From Lester Caine (2013-09-04):
|
||||
# The Isle of Man legislation is now on-line at
|
||||
# <http://www.legislation.gov.im>, starting with the original Statutory
|
||||
# <https://www.legislation.gov.im>, starting with the original Statutory
|
||||
# Time Act in 1883 and including additional confirmation of some of
|
||||
# the dates of the 'Summer Time' orders originating at
|
||||
# Westminster. There is a little uncertainty as to the starting date
|
||||
# of the first summer time in 1916 which may have be announced a
|
||||
# of the first summer time in 1916 which may have been announced a
|
||||
# couple of days late. There is still a substantial number of
|
||||
# documents to work through, but it is thought that every GB change
|
||||
# was also implemented on the island.
|
||||
@ -574,10 +574,10 @@ Zone Europe/Isle_of_Man -0:17:55 - LMT 1883 Mar 30 0:00s
|
||||
|
||||
# Jersey
|
||||
# Data from Joseph S. Myers
|
||||
# http://mm.icann.org/pipermail/tz/2013-September/019883.html
|
||||
# https://mm.icann.org/pipermail/tz/2013-September/019883.html
|
||||
# References to be added
|
||||
# LMT Location - 49.187N -2.107E - St. Helier
|
||||
Zone Europe/Jersey -0:08:25 - LMT 1898 Jun 11 16:00u
|
||||
# LMT is for Parish Church, St. Helier, 49 degrees 11'0.57"N 2 degrees 6'24.33"W
|
||||
Zone Europe/Jersey -0:08:26 - LMT 1898 Jun 11 16:00u
|
||||
0:00 GB-Eire %s 1940 Jul 2
|
||||
1:00 C-Eur CE%sT 1945 May 8
|
||||
0:00 GB-Eire %s 1968 Oct 27
|
||||
|
||||
173
contrib/tzdata/calendars
Normal file
173
contrib/tzdata/calendars
Normal file
@ -0,0 +1,173 @@
|
||||
----- Calendrical issues -----
|
||||
|
||||
As mentioned in Theory.html, although calendrical issues are out of
|
||||
scope for tzdb, they indicate the sort of problems that we would run
|
||||
into if we extended tzdb further into the past. The following
|
||||
information and sources go beyond Theory.html's brief discussion.
|
||||
They sometimes disagree.
|
||||
|
||||
|
||||
France
|
||||
|
||||
Gregorian calendar adopted 1582-12-20.
|
||||
French Revolutionary calendar used 1793-11-24 through 1805-12-31,
|
||||
and (in Paris only) 1871-05-06 through 1871-05-23.
|
||||
|
||||
|
||||
Russia
|
||||
|
||||
From Chris Carrier (1996-12-02):
|
||||
On 1929-10-01 the Soviet Union instituted an "Eternal Calendar"
|
||||
with 30-day months plus 5 holidays, with a 5-day week.
|
||||
On 1931-12-01 it changed to a 6-day week; in 1934 it reverted to the
|
||||
Gregorian calendar while retaining the 6-day week; on 1940-06-27 it
|
||||
reverted to the 7-day week. With the 6-day week the usual days
|
||||
off were the 6th, 12th, 18th, 24th and 30th of the month.
|
||||
(Source: Evitiar Zerubavel, _The Seven Day Circle_)
|
||||
|
||||
|
||||
Mark Brader reported a similar story in "The Book of Calendars", edited
|
||||
by Frank Parise (1982, Facts on File, ISBN 0-8719-6467-8), page 377. But:
|
||||
|
||||
From: Petteri Sulonen (via Usenet)
|
||||
Date: 14 Jan 1999 00:00:00 GMT
|
||||
...
|
||||
|
||||
If your source is correct, how come documents between 1929 and 1940 were
|
||||
still dated using the conventional, Gregorian calendar?
|
||||
|
||||
I can post a scan of a document dated December 1, 1934, signed by
|
||||
Yenukidze, the secretary, on behalf of Kalinin, the President of the
|
||||
Executive Committee of the Supreme Soviet, if you like.
|
||||
|
||||
|
||||
|
||||
Sweden (and Finland)
|
||||
|
||||
From: Mark Brader
|
||||
Subject: Re: Gregorian reform - a part of locale?
|
||||
<news:1996Jul6.012937.29190@sq.com>
|
||||
Date: 1996-07-06
|
||||
|
||||
In 1700, Denmark made the transition from Julian to Gregorian. Sweden
|
||||
decided to *start* a transition in 1700 as well, but rather than have one of
|
||||
those unsightly calendar gaps :-), they simply decreed that the next leap
|
||||
year after 1696 would be in 1744 - putting the whole country on a calendar
|
||||
different from both Julian and Gregorian for a period of 40 years.
|
||||
|
||||
However, in 1704 something went wrong and the plan was not carried through;
|
||||
they did, after all, have a leap year that year. And one in 1708. In 1712
|
||||
they gave it up and went back to Julian, putting 30 days in February that
|
||||
year!...
|
||||
|
||||
Then in 1753, Sweden made the transition to Gregorian in the usual manner,
|
||||
getting there only 13 years behind the original schedule.
|
||||
|
||||
(A previous posting of this story was challenged, and Swedish readers
|
||||
produced the following references to support it: "Tideräkning och historia"
|
||||
by Natanael Beckman (1924) and "Tid, en bok om tideräkning och
|
||||
kalenderväsen" by Lars-Olof Lodén (1968).
|
||||
|
||||
|
||||
Grotefend's data
|
||||
|
||||
From: "Michael Palmer" [with one obvious typo fixed]
|
||||
Subject: Re: Gregorian Calendar (was Re: Another FHC related question
|
||||
Newsgroups: soc.genealogy.german
|
||||
Date: Tue, 9 Feb 1999 02:32:48 -800
|
||||
...
|
||||
|
||||
The following is a(n incomplete) listing, arranged chronologically, of
|
||||
European states, with the date they converted from the Julian to the
|
||||
Gregorian calendar:
|
||||
|
||||
04/15 Oct 1582 - Italy (with exceptions), Spain, Portugal, Poland (Roman
|
||||
Catholics and Danzig only)
|
||||
09/20 Dec 1582 - France, Lorraine
|
||||
|
||||
21 Dec 1582/
|
||||
01 Jan 1583 - Holland, Brabant, Flanders, Hennegau
|
||||
10/21 Feb 1583 - bishopric of Liege (Lüttich)
|
||||
13/24 Feb 1583 - bishopric of Augsburg
|
||||
04/15 Oct 1583 - electorate of Trier
|
||||
05/16 Oct 1583 - Bavaria, bishoprics of Freising, Eichstedt, Regensburg,
|
||||
Salzburg, Brixen
|
||||
13/24 Oct 1583 - Austrian Oberelsaß and Breisgau
|
||||
20/31 Oct 1583 - bishopric of Basel
|
||||
02/13 Nov 1583 - duchy of Jülich-Berg
|
||||
02/13 Nov 1583 - electorate and city of Köln
|
||||
04/15 Nov 1583 - bishopric of Würzburg
|
||||
11/22 Nov 1583 - electorate of Mainz
|
||||
16/27 Nov 1583 - bishopric of Strassburg and the margraviate of Baden
|
||||
17/28 Nov 1583 - bishopric of Münster and duchy of Cleve
|
||||
14/25 Dec 1583 - Steiermark
|
||||
|
||||
06/17 Jan 1584 - Austria and Bohemia
|
||||
11/22 Jan 1584 - Lucerne, Uri, Schwyz, Zug, Freiburg, Solothurn
|
||||
12/23 Jan 1584 - Silesia and the Lausitz
|
||||
22 Jan/
|
||||
02 Feb 1584 - Hungary (legally on 21 Oct 1587)
|
||||
Jun 1584 - Unterwalden
|
||||
01/12 Jul 1584 - duchy of Westfalen
|
||||
|
||||
16/27 Jun 1585 - bishopric of Paderborn
|
||||
|
||||
14/25 Dec 1590 - Transylvania
|
||||
|
||||
22 Aug/
|
||||
02 Sep 1612 - duchy of Prussia
|
||||
|
||||
13/24 Dec 1614 - Pfalz-Neuburg
|
||||
|
||||
1617 - duchy of Kurland (reverted to the Julian calendar in
|
||||
1796)
|
||||
|
||||
1624 - bishopric of Osnabrück
|
||||
|
||||
1630 - bishopric of Minden
|
||||
|
||||
15/26 Mar 1631 - bishopric of Hildesheim
|
||||
|
||||
1655 - Kanton Wallis
|
||||
|
||||
05/16 Feb 1682 - city of Strassburg
|
||||
|
||||
18 Feb/
|
||||
01 Mar 1700 - Protestant Germany (including Swedish possessions in
|
||||
Germany), Denmark, Norway
|
||||
30 Jun/
|
||||
12 Jul 1700 - Gelderland, Zutphen
|
||||
10 Nov/
|
||||
12 Dec 1700 - Utrecht, Overijssel
|
||||
|
||||
31 Dec 1700/
|
||||
12 Jan 1701 - Friesland, Groningen, Zürich, Bern, Basel, Geneva,
|
||||
Turgau, and Schaffhausen
|
||||
|
||||
1724 - Glarus, Appenzell, and the city of St. Gallen
|
||||
|
||||
01 Jan 1750 - Pisa and Florence
|
||||
|
||||
02/14 Sep 1752 - Great Britain
|
||||
|
||||
17 Feb/
|
||||
01 Mar 1753 - Sweden
|
||||
|
||||
1760-1812 - Graubünden
|
||||
|
||||
The Russian empire (including Finland and the Baltic states) did not
|
||||
convert to the Gregorian calendar until the Soviet revolution of 1917.
|
||||
|
||||
Source: H. Grotefend, _Taschenbuch der Zeitrechnung des deutschen
|
||||
Mittelalters und der Neuzeit_, herausgegeben von Dr. O. Grotefend
|
||||
(Hannover: Hahnsche Buchhandlung, 1941), pp. 26-28.
|
||||
|
||||
-----
|
||||
|
||||
This file is in the public domain, so clarified as of 2009-05-17 by
|
||||
Arthur David Olson.
|
||||
|
||||
-----
|
||||
Local Variables:
|
||||
coding: utf-8
|
||||
End:
|
||||
@ -9,7 +9,7 @@ BEGIN {
|
||||
Zone = "\n"
|
||||
}
|
||||
|
||||
/^Zone/ {
|
||||
/^Z/ {
|
||||
if (defined[$2]) {
|
||||
if (defined[$2] == Zone) {
|
||||
printf "%s: Zone has duplicate definition\n", $2
|
||||
@ -21,7 +21,7 @@ BEGIN {
|
||||
defined[$2] = Zone
|
||||
}
|
||||
|
||||
/^Link/ {
|
||||
/^L/ {
|
||||
if (defined[$3]) {
|
||||
if (defined[$3] == Zone) {
|
||||
printf "%s: Link with same name as Zone\n", $3
|
||||
|
||||
@ -37,14 +37,14 @@
|
||||
# [PDF] (1914-03)
|
||||
#
|
||||
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
|
||||
# <http://www.jstor.org/stable/1774359>. He writes:
|
||||
# <https://www.jstor.org/stable/1774359>. He writes:
|
||||
# "It is requested that corrections and additions to these tables
|
||||
# may be sent to Mr. John Milne, Royal Geographical Society,
|
||||
# Savile Row, London." Nowadays please email them to tz@iana.org.
|
||||
#
|
||||
# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
|
||||
# This Russian-language source was consulted by Vladimir Karpinsky; see
|
||||
# http://mm.icann.org/pipermail/tz/2014-August/021320.html
|
||||
# https://mm.icann.org/pipermail/tz/2014-August/021320.html
|
||||
# The full Russian citation is:
|
||||
# Бялокоз, Евгений Людвигович. Новый счет времени в течении суток
|
||||
# введенный декретом Совета народных комиссаров для всей России с 1-го
|
||||
@ -187,7 +187,7 @@
|
||||
# foundations of civilization throughout the world.
|
||||
# -- "A Silent Toast to William Willett", Pictorial Weekly;
|
||||
# republished in Finest Hour (Spring 2002) 1(114):26
|
||||
# http://www.winstonchurchill.org/images/finesthour/Vol.01%20No.114.pdf
|
||||
# https://www.winstonchurchill.org/publications/finest-hour/finest-hour-114/a-silent-toast-to-william-willett-by-winston-s-churchill
|
||||
|
||||
# From Paul Eggert (2015-08-08):
|
||||
# The OED Supplement says that the English originally said "Daylight Saving"
|
||||
@ -225,8 +225,8 @@
|
||||
# official designation; the reply of the 21st was that there wasn't
|
||||
# but he couldn't think of anything better than the "Double British
|
||||
# Summer Time" that the BBC had been using informally.
|
||||
# http://www.polyomino.org.uk/british-time/bbc-19410418.png
|
||||
# http://www.polyomino.org.uk/british-time/ho-19410421.png
|
||||
# https://www.polyomino.org.uk/british-time/bbc-19410418.png
|
||||
# https://www.polyomino.org.uk/british-time/ho-19410421.png
|
||||
|
||||
# From Sir Alexander Maxwell in the above-mentioned letter (1941-04-21):
|
||||
# [N]o official designation has as far as I know been adopted for the time
|
||||
@ -243,13 +243,13 @@
|
||||
# the history of summer time legislation in the United Kingdom.
|
||||
# Since 1998 Joseph S. Myers has been updating
|
||||
# and extending this list, which can be found in
|
||||
# http://www.polyomino.org.uk/british-time/
|
||||
# https://www.polyomino.org.uk/british-time/
|
||||
|
||||
# From Joseph S. Myers (1998-01-06):
|
||||
#
|
||||
# The legal time in the UK outside of summer time is definitely GMT, not UTC;
|
||||
# see Lord Tanlaw's speech
|
||||
# http://www.publications.parliament.uk/pa/ld199798/ldhansrd/vo970611/text/70611-10.htm#70611-10_head0
|
||||
# https://www.publications.parliament.uk/pa/ld199798/ldhansrd/vo970611/text/70611-10.htm#70611-10_head0
|
||||
# (Lords Hansard 11 June 1997 columns 964 to 976).
|
||||
|
||||
# From Paul Eggert (2006-03-22):
|
||||
@ -295,7 +295,7 @@
|
||||
# Irish 'public feeling (was) outraged by forcing of English time on us'."
|
||||
# -- Parsons M. Dublin lost its time zone - and 25 minutes - after 1916 Rising.
|
||||
# Irish Times 2014-10-27.
|
||||
# http://www.irishtimes.com/news/politics/dublin-lost-its-time-zone-and-25-minutes-after-1916-rising-1.1977411
|
||||
# https://www.irishtimes.com/news/politics/dublin-lost-its-time-zone-and-25-minutes-after-1916-rising-1.1977411
|
||||
|
||||
# From Joseph S. Myers (2005-01-26):
|
||||
# Irish laws are available online at <http://www.irishstatutebook.ie>.
|
||||
@ -348,6 +348,12 @@
|
||||
# Justice (tel +353 1 678 9711) who confirmed to me that the correct name is
|
||||
# "Irish Summer Time", abbreviated to "IST".
|
||||
|
||||
# Michael Deckers (2017-06-01) gave the following URLs for Ireland's
|
||||
# Summer Time Act, 1925 and Summer Time Orders, 1926 and 1947:
|
||||
# http://www.irishstatutebook.ie/eli/1925/act/8/enacted/en/print.html
|
||||
# http://www.irishstatutebook.ie/eli/1926/sro/919/made/en/print.html
|
||||
# http://www.irishstatutebook.ie/eli/1947/sro/71/made/en/print.html
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
# Summer Time Act, 1916
|
||||
Rule GB-Eire 1916 only - May 21 2:00s 1:00 BST
|
||||
@ -472,14 +478,14 @@ Link Europe/London Europe/Isle_of_Man
|
||||
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2
|
||||
-0:25:21 - DMT 1916 May 21 2:00 # Dublin MT
|
||||
-0:25:21 - DMT 1916 May 21 2:00s # Dublin MT
|
||||
-0:25:21 1:00 IST 1916 Oct 1 2:00s
|
||||
0:00 GB-Eire %s 1921 Dec 6 # independence
|
||||
0:00 GB-Eire GMT/IST 1940 Feb 25 2:00
|
||||
0:00 1:00 IST 1946 Oct 6 2:00
|
||||
0:00 - GMT 1947 Mar 16 2:00
|
||||
0:00 1:00 IST 1947 Nov 2 2:00
|
||||
0:00 - GMT 1948 Apr 18 2:00
|
||||
0:00 GB-Eire GMT/IST 1940 Feb 25 2:00s
|
||||
0:00 1:00 IST 1946 Oct 6 2:00s
|
||||
0:00 - GMT 1947 Mar 16 2:00s
|
||||
0:00 1:00 IST 1947 Nov 2 2:00s
|
||||
0:00 - GMT 1948 Apr 18 2:00s
|
||||
0:00 GB-Eire GMT/IST 1968 Oct 27
|
||||
1:00 - IST 1971 Oct 31 2:00u
|
||||
0:00 GB-Eire GMT/IST 1996
|
||||
@ -625,7 +631,7 @@ Rule Russia 1996 2010 - Oct lastSun 2:00s 0 -
|
||||
# Council of Ministers of the USSR from 1989-03-14 No. 227.
|
||||
#
|
||||
# I did not find full texts of these acts. For the 1989 one we have
|
||||
# title at http://base.garant.ru/70754136/ :
|
||||
# title at https://base.garant.ru/70754136/ :
|
||||
# "About change in calculation of time on the territories of
|
||||
# Lithuanian SSR, Latvian SSR and Estonian SSR, Astrakhan,
|
||||
# Kaliningrad, Kirov, Kuybyshev, Ulyanovsk and Uralsk oblasts".
|
||||
@ -656,7 +662,7 @@ Rule Russia 1996 2010 - Oct lastSun 2:00s 0 -
|
||||
# http://bmockbe.ru/events/?ID=7583
|
||||
#
|
||||
# Medvedev signed a law on the calculation of the time (in russian):
|
||||
# http://www.regnum.ru/news/polit/1413906.html
|
||||
# https://www.regnum.ru/news/polit/1413906.html
|
||||
|
||||
# From Arthur David Olson (2011-06-15):
|
||||
# Take "abolishing daylight saving time" to mean that time is now considered
|
||||
@ -783,7 +789,7 @@ Zone Europe/Vienna 1:05:21 - LMT 1893 Apr
|
||||
# Sources (Russian language):
|
||||
# http://www.belta.by/ru/all_news/society/V-Belarusi-otmenjaetsja-perexod-na-sezonnoe-vremja_i_572952.html
|
||||
# http://naviny.by/rubrics/society/2011/09/16/ic_articles_116_175144/
|
||||
# http://news.tut.by/society/250578.html
|
||||
# https://news.tut.by/society/250578.html
|
||||
#
|
||||
# From Alexander Bokovoy (2014-10-09):
|
||||
# Belarussian government decided against changing to winter time....
|
||||
@ -1104,7 +1110,7 @@ Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base
|
||||
# for their standard and summer times. He says no, they use "suveaeg"
|
||||
# (summer time) and "talveaeg" (winter time).
|
||||
|
||||
# From The Baltic Times <http://www.baltictimes.com/> (1999-09-09)
|
||||
# From The Baltic Times <https://www.baltictimes.com/> (1999-09-09)
|
||||
# via Steffen Thorsen:
|
||||
# This year will mark the last time Estonia shifts to summer time,
|
||||
# a council of the ruling coalition announced Sept. 6....
|
||||
@ -1156,7 +1162,7 @@ Zone Europe/Tallinn 1:39:00 - LMT 1880
|
||||
# This is documented in Heikki Oja: Aikakirja 2007, published by The Almanac
|
||||
# Office of University of Helsinki, ISBN 952-10-3221-9, available online (in
|
||||
# Finnish) at
|
||||
# http://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf
|
||||
# https://almanakka.helsinki.fi/aikakirja/Aikakirja2007kokonaan.pdf
|
||||
#
|
||||
# Page 105 (56 in PDF version) has a handy table of all past daylight savings
|
||||
# transitions. It is easy enough to interpret without Finnish skills.
|
||||
@ -1169,7 +1175,7 @@ Zone Europe/Tallinn 1:39:00 - LMT 1880
|
||||
|
||||
# From Konstantin Hyppönen (2014-06-13):
|
||||
# [Heikki Oja's book Aikakirja 2013]
|
||||
# http://almanakka.helsinki.fi/images/aikakirja/Aikakirja2013kokonaan.pdf
|
||||
# https://almanakka.helsinki.fi/images/aikakirja/Aikakirja2013kokonaan.pdf
|
||||
# pages 104-105, including a scan from a newspaper published on Apr 2 1942
|
||||
# say that ... [o]n Apr 2 1942, 24 o'clock (which means Apr 3 1942,
|
||||
# 00:00), clocks were moved one hour forward. The newspaper
|
||||
@ -1299,7 +1305,7 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01
|
||||
|
||||
# From Jörg Schilling (2002-10-23):
|
||||
# In 1945, Berlin was switched to Moscow Summer time (GMT+4) by
|
||||
# http://www.dhm.de/lemo/html/biografien/BersarinNikolai/
|
||||
# https://www.dhm.de/lemo/html/biografien/BersarinNikolai/
|
||||
# General [Nikolai] Bersarin.
|
||||
|
||||
# From Paul Eggert (2003-03-08):
|
||||
@ -1524,7 +1530,7 @@ Zone Atlantic/Reykjavik -1:28 - LMT 1908
|
||||
# From Paul Eggert (2016-10-27):
|
||||
# Go with INRiM for DST rules, except as corrected by Inglis for 1944
|
||||
# for the Kingdom of Italy. This is consistent with Renzo Baldini.
|
||||
# Model Rome's occupation by using using C-Eur rules from 1943-09-10
|
||||
# Model Rome's occupation by using C-Eur rules from 1943-09-10
|
||||
# to 1944-06-04; although Rome was an open city during this period, it
|
||||
# was effectively controlled by Germany.
|
||||
#
|
||||
@ -1839,14 +1845,14 @@ Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta
|
||||
# Following Moldova and neighboring Ukraine- Transnistria (Pridnestrovie)-
|
||||
# Tiraspol will go back to winter time on October 30, 2011.
|
||||
# News from Moldova (in russian):
|
||||
# http://ru.publika.md/link_317061.html
|
||||
# https://ru.publika.md/link_317061.html
|
||||
|
||||
# From Roman Tudos (2015-07-02):
|
||||
# http://lex.justice.md/index.php?action=view&view=doc&lang=1&id=355077
|
||||
# From Paul Eggert (2015-07-01):
|
||||
# The abovementioned official link to IGO1445-868/2014 states that
|
||||
# 2014-10-26's fallback transition occurred at 03:00 local time. Also,
|
||||
# http://www.trm.md/en/social/la-30-martie-vom-trece-la-ora-de-vara
|
||||
# https://www.trm.md/en/social/la-30-martie-vom-trece-la-ora-de-vara
|
||||
# says the 2014-03-30 spring-forward transition was at 02:00 local time.
|
||||
# Guess that since 1997 Moldova has switched one hour before the EU.
|
||||
|
||||
@ -1918,7 +1924,7 @@ Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15
|
||||
# Amsterdam mean time.
|
||||
|
||||
# The data entries before 1945 are taken from
|
||||
# http://www.staff.science.uu.nl/~gent0113/wettijd/wettijd.htm
|
||||
# https://www.staff.science.uu.nl/~gent0113/wettijd/wettijd.htm
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Neth 1916 only - May 1 0:00 1:00 NST # Netherlands Summer Time
|
||||
@ -1999,7 +2005,7 @@ Zone Europe/Oslo 0:43:00 - LMT 1895 Jan 1
|
||||
# so it must have diverged from Oslo time during the war, as Oslo was
|
||||
# keeping Berlin time.
|
||||
#
|
||||
# <http://home.no.net/janmayen/history.htm> says that the meteorologists
|
||||
# <https://www.jan-mayen.no/history.htm> says that the meteorologists
|
||||
# burned down their station in 1940 and left the island, but returned in
|
||||
# 1941 with a small Norwegian garrison and continued operations despite
|
||||
# frequent air attacks from Germans. In 1943 the Americans established a
|
||||
@ -2037,7 +2043,7 @@ Rule Poland 1945 only - Apr 29 0:00 1:00 S
|
||||
Rule Poland 1945 only - Nov 1 0:00 0 -
|
||||
# For 1946 on the source is Kazimierz Borkowski,
|
||||
# Toruń Center for Astronomy, Dept. of Radio Astronomy, Nicolaus Copernicus U.,
|
||||
# http://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1
|
||||
# https://www.astro.uni.torun.pl/~kb/Artykuly/U-PA/Czas2.htm#tth_tAb1
|
||||
# Thanks to Przemysław Augustyniak (2005-05-28) for this reference.
|
||||
# He also gives these further references:
|
||||
# Mon Pol nr 13, poz 162 (1995) <http://www.abc.com.pl/serwis/mp/1995/0162.htm>
|
||||
@ -2071,7 +2077,7 @@ Zone Europe/Warsaw 1:24:00 - LMT 1880
|
||||
#
|
||||
# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
|
||||
# According to a Portuguese decree (1911-05-26)
|
||||
# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
|
||||
# https://dre.pt/application/dir/pdf1sdip/1911/05/12500/23132313.pdf
|
||||
# Lisbon was at -0:36:44.68, but switched to GMT on 1912-01-01 at 00:00.
|
||||
# Round the old offset to -0:36:45. This agrees with Willett but disagrees
|
||||
# with Shanks, who says the transition occurred on 1911-05-24 at 00:00 for
|
||||
@ -2253,7 +2259,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
|
||||
# 2011 No. 725" and contains no other dates or "effective date" information.
|
||||
#
|
||||
# Another source is
|
||||
# http://www.rg.ru/2011/09/06/chas-zona-dok.html
|
||||
# https://rg.ru/2011/09/06/chas-zona-dok.html
|
||||
# which, according to translate.google.com, begins "Resolution of the
|
||||
# Government of the Russian Federation on August 31, 2011 N 725" and also
|
||||
# contains "Date first official publication: September 6, 2011 Posted on:
|
||||
@ -2261,7 +2267,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
|
||||
# does not contain any "effective date" information.
|
||||
#
|
||||
# Another source is
|
||||
# http://en.wikipedia.org/wiki/Oymyakonsky_District#cite_note-RuTime-7
|
||||
# https://en.wikipedia.org/wiki/Oymyakonsky_District#cite_note-RuTime-7
|
||||
# which, in note 8, contains "Resolution No. 725 of August 31, 2011...
|
||||
# Effective as of after 7 days following the day of the official publication"
|
||||
# but which does not contain any reference to September 6, 2011.
|
||||
@ -2297,7 +2303,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
|
||||
# http://itar-tass.com/obschestvo/1333711
|
||||
# http://www.pravo.gov.ru:8080/page.aspx?111660
|
||||
# http://www.kremlin.ru/acts/46279
|
||||
# From October 26, 2014 the new Russian time zone map will looks like this:
|
||||
# From October 26, 2014 the new Russian time zone map will look like this:
|
||||
# http://www.worldtimezone.com/dst_news/dst_news_russia-map-2014-07.html
|
||||
|
||||
# From Paul Eggert (2006-03-22):
|
||||
@ -2344,7 +2350,7 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
|
||||
# with maintenance only and represent our best guesses as to which regions
|
||||
# are covered by each zone. They are not meant to be taken as an authoritative
|
||||
# listing. The region codes listed come from
|
||||
# http://en.wikipedia.org/w/?title=Federal_subjects_of_Russia&oldid=611810498
|
||||
# https://en.wikipedia.org/w/?title=Federal_subjects_of_Russia&oldid=611810498
|
||||
# and are used for convenience only; no guarantees are made regarding their
|
||||
# future stability. ISO 3166-2:RU codes are also listed for first-level
|
||||
# divisions where available.
|
||||
@ -2509,7 +2515,7 @@ Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr
|
||||
# http://www.kaliningradka.ru/site_pc/cherez/index.php?ELEMENT_ID=40091
|
||||
# says that Kaliningrad decided not to be an exception 2 days before the
|
||||
# 1991-03-31 switch and one person at
|
||||
# http://izhevsk.ru/forum_light_message/50/682597-m8369040.html
|
||||
# https://izhevsk.ru/forum_light_message/50/682597-m8369040.html
|
||||
# says he remembers that Samara opted out of the 1992-01-19 exception
|
||||
# 2 days before the switch.
|
||||
#
|
||||
@ -2581,7 +2587,7 @@ Zone Europe/Simferopol 2:16:24 - LMT 1880
|
||||
3:00 - MSK 1997 Mar lastSun 1:00u
|
||||
# From Alexander Krivenyshev (2014-03-17):
|
||||
# time change at 2:00 (2am) on March 30, 2014
|
||||
# http://vz.ru/news/2014/3/17/677464.html
|
||||
# https://vz.ru/news/2014/3/17/677464.html
|
||||
# From Paul Eggert (2014-03-30):
|
||||
# Simferopol and Sevastopol reportedly changed their central town clocks
|
||||
# late the previous day, but this appears to have been ceremonial
|
||||
@ -2764,7 +2770,7 @@ Zone Asia/Omsk 4:53:30 - LMT 1919 Nov 14
|
||||
# suggests that Altai Republic transitioned to Moscow+3 on
|
||||
# 1995-05-28.
|
||||
#
|
||||
# http://regnum.ru/news/society/1957270.html
|
||||
# https://regnum.ru/news/society/1957270.html
|
||||
# has some historical data for Altai Krai:
|
||||
# before 1957: west part on UTC+6, east on UTC+7
|
||||
# after 1957: UTC+7
|
||||
@ -3138,8 +3144,8 @@ Zone Asia/Magadan 10:03:12 - LMT 1924 May 2
|
||||
# districts, but have very similar populations. In fact, Wikipedia currently
|
||||
# lists them both as having 3528 people, exactly 1668 males and 1860 females
|
||||
# each! (Yikes!)
|
||||
# http://en.wikipedia.org/w/?title=Srednekolymsky_District&oldid=603435276
|
||||
# http://en.wikipedia.org/w/?title=Verkhnekolymsky_District&oldid=594378493
|
||||
# https://en.wikipedia.org/w/?title=Srednekolymsky_District&oldid=603435276
|
||||
# https://en.wikipedia.org/w/?title=Verkhnekolymsky_District&oldid=594378493
|
||||
# Assume this is a mistake, albeit an amusing one.
|
||||
#
|
||||
# Looking at censuses, the populations of the two municipalities seem to have
|
||||
@ -3460,7 +3466,7 @@ Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1
|
||||
#
|
||||
# From Alois Treindl (2013-09-11):
|
||||
# The Federal regulations say
|
||||
# http://www.admin.ch/opc/de/classified-compilation/20071096/index.html
|
||||
# https://www.admin.ch/opc/de/classified-compilation/20071096/index.html
|
||||
# ... the meridian for Bern mean time ... is 7 degrees 26' 22.50".
|
||||
# Expressed in time, it is 0h29m45.5s.
|
||||
|
||||
@ -3537,9 +3543,9 @@ Zone Europe/Zurich 0:34:08 - LMT 1853 Jul 16 # See above comment.
|
||||
# According to the articles linked below, Turkey will change into summer
|
||||
# time zone (GMT+3) on March 28, 2011 at 3:00 a.m. instead of March 27.
|
||||
# This change is due to a nationwide exam on 27th.
|
||||
# http://www.worldbulletin.net/?aType=haber&ArticleID=70872
|
||||
# https://www.worldbulletin.net/?aType=haber&ArticleID=70872
|
||||
# Turkish:
|
||||
# http://www.hurriyet.com.tr/ekonomi/17230464.asp?gid=373
|
||||
# https://www.hurriyet.com.tr/yaz-saati-uygulamasi-bir-gun-ileri-alindi-17230464
|
||||
|
||||
# From Faruk Pasin (2014-02-14):
|
||||
# The DST for Turkey has been changed for this year because of the
|
||||
@ -3675,7 +3681,7 @@ Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents.
|
||||
# http://www.segodnya.ua/news/14290482.html
|
||||
#
|
||||
# Deputies cancelled the winter time (in Russian)
|
||||
# http://www.pravda.com.ua/rus/news/2011/09/20/6600616/
|
||||
# https://www.pravda.com.ua/rus/news/2011/09/20/6600616/
|
||||
#
|
||||
# From Philip Pizzey (2011-10-18):
|
||||
# Today my Ukrainian colleagues have informed me that the
|
||||
|
||||
@ -199,10 +199,10 @@
|
||||
# current -- the update time stamp, the data and the name of the file
|
||||
# will not change.
|
||||
#
|
||||
# Updated through IERS Bulletin C53
|
||||
# File expires on: 28 December 2017
|
||||
# Updated through IERS Bulletin C54
|
||||
# File expires on: 28 June 2018
|
||||
#
|
||||
#@ 3723408000
|
||||
#@ 3739132800
|
||||
#
|
||||
2272060800 10 # 1 Jan 1972
|
||||
2287785600 11 # 1 Jul 1972
|
||||
@ -247,4 +247,4 @@
|
||||
# the hash line is also ignored in the
|
||||
# computation.
|
||||
#
|
||||
#h 62cf8c5d 8bbb6dcc c61e3b56 c308343 869bb80d
|
||||
#h 5101445a 69948b51 9153e2b 2086e3d8 d54561a3
|
||||
|
||||
@ -3,19 +3,18 @@
|
||||
# This file is in the public domain.
|
||||
|
||||
# This file is generated automatically from the data in the public-domain
|
||||
# leap-seconds.list file available from most NIST time servers.
|
||||
# If the URL <ftp://time.nist.gov/pub/leap-seconds.list> does not work,
|
||||
# you should be able to pick up leap-seconds.list from a secondary NIST server.
|
||||
# See <http://tf.nist.gov/tf-cgi/servers.cgi> for a list of secondary servers.
|
||||
# leap-seconds.list file, which is copied from:
|
||||
# ftp://ftp.nist.gov/pub/time/leap-seconds.list
|
||||
# For more about leap-seconds.list, please see
|
||||
# The NTP Timescale and Leap Seconds
|
||||
# http://www.eecis.udel.edu/~mills/leap.html
|
||||
# https://www.eecis.udel.edu/~mills/leap.html
|
||||
|
||||
# The International Earth Rotation and Reference Systems Service
|
||||
# periodically uses leap seconds to keep UTC to within 0.9 s of UT1
|
||||
# (which measures the true angular orientation of the earth in space); see
|
||||
# Terry J Quinn, The BIPM and the accurate measure of time,
|
||||
# Proc IEEE 79, 7 (July 1991), 894-905 <http://dx.doi.org/10.1109/5.84965>.
|
||||
# Levine J. Coordinated Universal Time and the leap second.
|
||||
# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
|
||||
# http://ieeexplore.ieee.org/document/7909995/
|
||||
# There were no leap seconds before 1972, because the official mechanism
|
||||
# accounting for the discrepancy between atomic time and the earth's rotation
|
||||
# did not exist until the early 1970s.
|
||||
@ -58,5 +57,5 @@ Leap 2012 Jun 30 23:59:60 + S
|
||||
Leap 2015 Jun 30 23:59:60 + S
|
||||
Leap 2016 Dec 31 23:59:60 + S
|
||||
|
||||
# Updated through IERS Bulletin C53
|
||||
# File expires on: 28 December 2017
|
||||
# Updated through IERS Bulletin C54
|
||||
# File expires on: 28 June 2018
|
||||
|
||||
@ -8,19 +8,18 @@ BEGIN {
|
||||
print "# This file is in the public domain."
|
||||
print ""
|
||||
print "# This file is generated automatically from the data in the public-domain"
|
||||
print "# leap-seconds.list file available from most NIST time servers."
|
||||
print "# If the URL <ftp://time.nist.gov/pub/leap-seconds.list> does not work,"
|
||||
print "# you should be able to pick up leap-seconds.list from a secondary NIST server."
|
||||
print "# See <http://tf.nist.gov/tf-cgi/servers.cgi> for a list of secondary servers."
|
||||
print "# leap-seconds.list file, which is copied from:"
|
||||
print "# ftp://ftp.nist.gov/pub/time/leap-seconds.list"
|
||||
print "# For more about leap-seconds.list, please see"
|
||||
print "# The NTP Timescale and Leap Seconds"
|
||||
print "# http://www.eecis.udel.edu/~mills/leap.html"
|
||||
print "# https://www.eecis.udel.edu/~mills/leap.html"
|
||||
print ""
|
||||
print "# The International Earth Rotation and Reference Systems Service"
|
||||
print "# periodically uses leap seconds to keep UTC to within 0.9 s of UT1"
|
||||
print "# (which measures the true angular orientation of the earth in space); see"
|
||||
print "# Terry J Quinn, The BIPM and the accurate measure of time,"
|
||||
print "# Proc IEEE 79, 7 (July 1991), 894-905 <http://dx.doi.org/10.1109/5.84965>."
|
||||
print "# Levine J. Coordinated Universal Time and the leap second."
|
||||
print "# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995"
|
||||
print "# http://ieeexplore.ieee.org/document/7909995/"
|
||||
print "# There were no leap seconds before 1972, because the official mechanism"
|
||||
print "# accounting for the discrepancy between atomic time and the earth's rotation"
|
||||
print "# did not exist until the early 1970s."
|
||||
|
||||
@ -105,10 +105,13 @@
|
||||
# Last night I heard part of a rebroadcast of a 1945 Arch Oboler radio drama.
|
||||
# In the introduction, Oboler spoke of "Eastern Peace Time."
|
||||
# An AltaVista search turned up:
|
||||
# http://rowayton.org/rhs/hstaug45.html
|
||||
# https://web.archive.org/web/20000926032210/http://rowayton.org/rhs/hstaug45.html
|
||||
# "When the time is announced over the radio now, it is 'Eastern Peace
|
||||
# Time' instead of the old familiar 'Eastern War Time.' Peace is wonderful."
|
||||
# (August 1945) by way of confirmation.
|
||||
#
|
||||
# From Paul Eggert (2017-09-23):
|
||||
# This was the V-J Day issue of the Clamdigger, a Rowayton, CT newsletter.
|
||||
|
||||
# From Joseph Gallant citing
|
||||
# George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):
|
||||
@ -257,7 +260,7 @@ Zone PST8PDT -8:00 US P%sT
|
||||
# HST and HDT are standardized abbreviations for Hawaii-Aleutian
|
||||
# standard and daylight times. See section 9.47 (p 234) of the
|
||||
# U.S. Government Printing Office Style Manual (2008)
|
||||
# http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
|
||||
# https://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
|
||||
|
||||
# From Arthur David Olson, 2005-08-09
|
||||
# The following was signed into law on 2005-08-08.
|
||||
@ -346,7 +349,7 @@ Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58
|
||||
# western Tennessee, most of Texas, Wisconsin
|
||||
|
||||
# From Larry M. Smith (2006-04-26) re Wisconsin:
|
||||
# http://www.legis.state.wi.us/statutes/Stat0175.pdf ...
|
||||
# https://docs.legis.wisconsin.gov/statutes/statutes/175.pdf
|
||||
# is currently enforced at the 01:00 time of change. Because the local
|
||||
# "bar time" in the state corresponds to 02:00, a number of citations
|
||||
# are issued for the "sale of class 'B' alcohol after prohibited
|
||||
@ -355,7 +358,7 @@ Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58
|
||||
# From Douglas R. Bomberg (2007-03-12):
|
||||
# Wisconsin has enacted (nearly eleventh-hour) legislation to get WI
|
||||
# Statue 175 closer in synch with the US Congress' intent....
|
||||
# http://www.legis.state.wi.us/2007/data/acts/07Act3.pdf
|
||||
# https://docs.legis.wisconsin.gov/2007/related/acts/3
|
||||
|
||||
# From an email administrator of the City of Fort Pierre, SD (2015-12-21):
|
||||
# Fort Pierre is technically located in the Mountain time zone as is
|
||||
@ -402,7 +405,7 @@ Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21
|
||||
# ...it appears that Mercer County, North Dakota, changed from the
|
||||
# mountain time zone to the central time zone at the last transition from
|
||||
# daylight-saving to standard time (on Nov. 7, 2010):
|
||||
# http://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm
|
||||
# https://www.gpo.gov/fdsys/pkg/FR-2010-09-29/html/2010-24376.htm
|
||||
# http://www.bismarcktribune.com/news/local/article_1eb1b588-c758-11df-b472-001cc4c03286.html
|
||||
|
||||
# From Andy Lipscomb (2011-01-24):
|
||||
@ -453,7 +456,7 @@ Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04
|
||||
# legal time, and is not part of the data here.) See:
|
||||
# Ross SA. An energy crisis from the past: Northern California in 1948.
|
||||
# Working Paper No. 8, Institute of Governmental Studies, UC Berkeley,
|
||||
# 1973-11. http://escholarship.org/uc/item/8x22k30c
|
||||
# 1973-11. https://escholarship.org/uc/item/8x22k30c
|
||||
#
|
||||
# In another measure to save electricity, DST was instituted from 1948-03-14
|
||||
# at 02:01 to 1949-01-16 at 02:00, with the governor having the option to move
|
||||
@ -474,8 +477,8 @@ Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04
|
||||
# which established DST from April's last Sunday at 01:00 until September's
|
||||
# last Sunday at 02:00. This was amended by 1962's Proposition 6, which changed
|
||||
# the fall-back date to October's last Sunday. See:
|
||||
# http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1501&context=ca_ballot_props
|
||||
# http://repository.uchastings.edu/cgi/viewcontent.cgi?article=1636&context=ca_ballot_props
|
||||
# https://repository.uchastings.edu/cgi/viewcontent.cgi?article=1501&context=ca_ballot_props
|
||||
# https://repository.uchastings.edu/cgi/viewcontent.cgi?article=1636&context=ca_ballot_props
|
||||
#
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
||||
Rule CA 1948 only - Mar 14 2:01 1:00 D
|
||||
@ -492,20 +495,31 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
|
||||
# Alaska
|
||||
# AK%sT is the modern abbreviation for -09 per USNO.
|
||||
#
|
||||
# From Paul Eggert (2001-05-30):
|
||||
# From Paul Eggert (2017-06-15):
|
||||
# Howse writes that Alaska switched from the Julian to the Gregorian calendar,
|
||||
# and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
|
||||
# This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
|
||||
# also a Friday. Include only the time zone part of this transition,
|
||||
# ignoring the switch from Julian to Gregorian, since we can't represent
|
||||
# the Julian calendar.
|
||||
# On Friday, 1867-10-18 (Gregorian), at precisely 15:30 local time, the
|
||||
# Russian forts and fleet at Sitka fired salutes to mark the ceremony of
|
||||
# formal transfer. See the Sacramento Daily Union (1867-11-14), p 3, col 2.
|
||||
# https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=SDU18671114.2.12.1
|
||||
# Sitka workers did not change their calendars until Sunday, 1867-10-20,
|
||||
# and so celebrated two Sundays that week. See: Ahllund T (tr Hallamaa P).
|
||||
# From the memoirs of a Finnish workman. Alaska History. 2006 Fall;21(2):1-25.
|
||||
# http://alaskahistoricalsociety.org/wp-content/uploads/2016/12/Ahllund-2006-Memoirs-of-a-Finnish-Workman.pdf
|
||||
# Include only the time zone part of this transition, ignoring the switch
|
||||
# from Julian to Gregorian, since we can't represent the Julian calendar.
|
||||
#
|
||||
# As far as we know, none of the exact locations mentioned below were
|
||||
# As far as we know, of the locations mentioned below only Sitka was
|
||||
# permanently inhabited in 1867 by anyone using either calendar.
|
||||
# (Yakutat was colonized by the Russians in 1799, but the settlement
|
||||
# was destroyed in 1805 by a Yakutat-kon war party.) However, there
|
||||
# were nearby inhabitants in some cases and for our purposes perhaps
|
||||
# it's best to simply use the official transition.
|
||||
# (Yakutat was colonized by the Russians in 1799, but the settlement was
|
||||
# destroyed in 1805 by a Yakutat-kon war party.) Many of Alaska's inhabitants
|
||||
# were unaware of the US acquisition of Alaska, much less of any calendar or
|
||||
# time change. However, the Russian-influenced part of Alaska did observe
|
||||
# Russian time, and it is more accurate to model this than to ignore it.
|
||||
# The database format requires an exact transition time; use the Russian
|
||||
# salute as a somewhat-arbitrary time for the formal transfer of control for
|
||||
# all of Alaska. Sitka's UTC offset is -9:01:13; adjust its 15:30 to the
|
||||
# local times of other Alaskan locations so that they change simultaneously.
|
||||
|
||||
# From Paul Eggert (2014-07-18):
|
||||
# One opinion of the early-1980s turmoil in Alaska over time zones and
|
||||
@ -558,10 +572,10 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02
|
||||
# It seems Metlakatla did go off PST on Sunday, November 1, changing
|
||||
# their time to AKST and are going to follow Alaska's DST, switching
|
||||
# between AKST and AKDT from now on....
|
||||
# http://www.krbd.org/2015/10/30/annette-island-times-they-are-a-changing/
|
||||
# https://www.krbd.org/2015/10/30/annette-island-times-they-are-a-changing/
|
||||
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone America/Juneau 15:02:19 - LMT 1867 Oct 18
|
||||
Zone America/Juneau 15:02:19 - LMT 1867 Oct 19 15:33:32
|
||||
-8:57:41 - LMT 1900 Aug 20 12:00
|
||||
-8:00 - PST 1942
|
||||
-8:00 US P%sT 1946
|
||||
@ -571,7 +585,7 @@ Zone America/Juneau 15:02:19 - LMT 1867 Oct 18
|
||||
-8:00 US P%sT 1983 Oct 30 2:00
|
||||
-9:00 US Y%sT 1983 Nov 30
|
||||
-9:00 US AK%sT
|
||||
Zone America/Sitka 14:58:47 - LMT 1867 Oct 18
|
||||
Zone America/Sitka 14:58:47 - LMT 1867 Oct 19 15:30
|
||||
-9:01:13 - LMT 1900 Aug 20 12:00
|
||||
-8:00 - PST 1942
|
||||
-8:00 US P%sT 1946
|
||||
@ -579,7 +593,7 @@ Zone America/Sitka 14:58:47 - LMT 1867 Oct 18
|
||||
-8:00 US P%sT 1983 Oct 30 2:00
|
||||
-9:00 US Y%sT 1983 Nov 30
|
||||
-9:00 US AK%sT
|
||||
Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18
|
||||
Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 19 15:44:55
|
||||
-8:46:18 - LMT 1900 Aug 20 12:00
|
||||
-8:00 - PST 1942
|
||||
-8:00 US P%sT 1946
|
||||
@ -587,14 +601,14 @@ Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18
|
||||
-8:00 US P%sT 1983 Oct 30 2:00
|
||||
-8:00 - PST 2015 Nov 1 2:00
|
||||
-9:00 US AK%sT
|
||||
Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18
|
||||
Zone America/Yakutat 14:41:05 - LMT 1867 Oct 19 15:12:18
|
||||
-9:18:55 - LMT 1900 Aug 20 12:00
|
||||
-9:00 - YST 1942
|
||||
-9:00 US Y%sT 1946
|
||||
-9:00 - YST 1969
|
||||
-9:00 US Y%sT 1983 Nov 30
|
||||
-9:00 US AK%sT
|
||||
Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
|
||||
Zone America/Anchorage 14:00:24 - LMT 1867 Oct 19 14:31:37
|
||||
-9:59:36 - LMT 1900 Aug 20 12:00
|
||||
-10:00 - AST 1942
|
||||
-10:00 US A%sT 1967 Apr
|
||||
@ -602,7 +616,7 @@ Zone America/Anchorage 14:00:24 - LMT 1867 Oct 18
|
||||
-10:00 US AH%sT 1983 Oct 30 2:00
|
||||
-9:00 US Y%sT 1983 Nov 30
|
||||
-9:00 US AK%sT
|
||||
Zone America/Nome 12:58:21 - LMT 1867 Oct 18
|
||||
Zone America/Nome 12:58:22 - LMT 1867 Oct 19 13:29:35
|
||||
-11:01:38 - LMT 1900 Aug 20 12:00
|
||||
-11:00 - NST 1942
|
||||
-11:00 US N%sT 1946
|
||||
@ -611,7 +625,7 @@ Zone America/Nome 12:58:21 - LMT 1867 Oct 18
|
||||
-11:00 US B%sT 1983 Oct 30 2:00
|
||||
-9:00 US Y%sT 1983 Nov 30
|
||||
-9:00 US AK%sT
|
||||
Zone America/Adak 12:13:21 - LMT 1867 Oct 18
|
||||
Zone America/Adak 12:13:22 - LMT 1867 Oct 19 12:44:35
|
||||
-11:46:38 - LMT 1900 Aug 20 12:00
|
||||
-11:00 - NST 1942
|
||||
-11:00 US N%sT 1946
|
||||
@ -647,7 +661,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18
|
||||
# "Hawaiian Time" by Robert C. Schmitt and Doak C. Cox appears on pages 207-225
|
||||
# of volume 26 of The Hawaiian Journal of History (1992). As of 2010-12-09,
|
||||
# the article is available at
|
||||
# http://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf
|
||||
# https://evols.library.manoa.hawaii.edu/bitstream/10524/239/2/JL26215.pdf
|
||||
# and indicates that standard time was adopted effective noon, January
|
||||
# 13, 1896 (page 218), that in "1933, the Legislature decreed daylight
|
||||
# saving for the period between the last Sunday of each April and the
|
||||
@ -746,7 +760,7 @@ Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11
|
||||
# Indiana
|
||||
#
|
||||
# For a map of Indiana's time zone regions, see:
|
||||
# http://en.wikipedia.org/wiki/Time_in_Indiana
|
||||
# https://en.wikipedia.org/wiki/Time_in_Indiana
|
||||
#
|
||||
# From Paul Eggert (2007-08-17):
|
||||
# Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
|
||||
@ -973,7 +987,7 @@ Zone America/Kentucky/Louisville -5:43:02 - LMT 1883 Nov 18 12:16:58
|
||||
# From Paul Eggert (2001-07-16):
|
||||
# The final rule was published in the
|
||||
# Federal Register 65, 160 (2000-08-17), pp 50154-50158.
|
||||
# http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22
|
||||
# https://www.gpo.gov/fdsys/pkg/FR-2000-08-17/html/00-20854.htm
|
||||
#
|
||||
Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36
|
||||
-6:00 US C%sT 1946
|
||||
@ -999,7 +1013,7 @@ Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36
|
||||
# West Wendover, NV officially switched from Pacific to mountain time on
|
||||
# 1999-10-31. See the
|
||||
# Federal Register 64, 203 (1999-10-21), pp 56705-56707.
|
||||
# http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15
|
||||
# https://www.gpo.gov/fdsys/pkg/FR-1999-10-21/html/99-27240.htm
|
||||
# However, the Federal Register says that West Wendover already operated
|
||||
# on mountain time, and the rule merely made this official;
|
||||
# hence a separate tz entry is not needed.
|
||||
@ -1029,12 +1043,23 @@ Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36
|
||||
# one hour in 1914." This change is not in Shanks. We have no more
|
||||
# info, so omit this for now.
|
||||
#
|
||||
# From Paul Eggert (2017-07-26):
|
||||
# Although Shanks says Detroit observed DST in 1967 from 06-14 00:01
|
||||
# until 10-29 00:01, I now see multiple reports that this is incorrect.
|
||||
# For example, according to a 50-year anniversary report about the 1967
|
||||
# Detroit riots and a major-league doubleheader on 1967-07-23, "By the time
|
||||
# the last fly ball of the doubleheader settled into the glove of leftfielder
|
||||
# Lenny Green, it was after 7 p.m. Detroit did not observe daylight saving
|
||||
# time, so light was already starting to fail. Twilight was made even deeper
|
||||
# by billowing columns of smoke that ascended in an unbroken wall north of the
|
||||
# ballpark." See: Dow B. Detroit '67: As violence unfolded, Tigers played two
|
||||
# at home vs. Yankees. Detroit Free Press 2017-07-23.
|
||||
# https://www.freep.com/story/sports/mlb/tigers/2017/07/23/detroit-tigers-1967-riot-new-york-yankees/499951001/
|
||||
#
|
||||
# Most of Michigan observed DST from 1973 on, but was a bit late in 1975.
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER
|
||||
Rule Detroit 1948 only - Apr lastSun 2:00 1:00 D
|
||||
Rule Detroit 1948 only - Sep lastSun 2:00 0 S
|
||||
Rule Detroit 1967 only - Jun 14 2:00 1:00 D
|
||||
Rule Detroit 1967 only - Oct lastSun 2:00 0 S
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone America/Detroit -5:32:11 - LMT 1905
|
||||
-6:00 - CST 1915 May 15 2:00
|
||||
@ -1098,7 +1123,7 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
|
||||
# [PDF] (1914-03)
|
||||
#
|
||||
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
|
||||
# <http://www.jstor.org/stable/1774359>.
|
||||
# <https://www.jstor.org/stable/1774359>.
|
||||
#
|
||||
# See the 'europe' file for Greenland.
|
||||
|
||||
@ -1144,19 +1169,19 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
|
||||
# The British Columbia government announced yesterday that it will
|
||||
# adjust daylight savings next year to align with changes in the
|
||||
# U.S. and the rest of Canada....
|
||||
# http://www2.news.gov.bc.ca/news_releases_2005-2009/2006AG0014-000330.htm
|
||||
# https://archive.news.gov.bc.ca/releases/news_releases_2005-2009/2006AG0014-000330.htm
|
||||
# ...
|
||||
# Nova Scotia
|
||||
# Daylight saving time will be extended by four weeks starting in 2007....
|
||||
# http://www.gov.ns.ca/just/regulations/rg2/2006/ma1206.pdf
|
||||
# https://www.novascotia.ca/just/regulations/rg2/2006/ma1206.pdf
|
||||
#
|
||||
# [For New Brunswick] the new legislation dictates that the time change is to
|
||||
# be done at 02:00 instead of 00:01.
|
||||
# http://www.gnb.ca/0062/acts/BBA-2006/Chap-19.pdf
|
||||
# https://www.gnb.ca/0062/acts/BBA-2006/Chap-19.pdf
|
||||
# ...
|
||||
# Manitoba has traditionally changed the clock every fall at 03:00.
|
||||
# As of 2006, the transition is to take place one hour earlier at 02:00.
|
||||
# http://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php
|
||||
# https://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php
|
||||
# ...
|
||||
# [Alberta, Ontario, Quebec] will follow US rules.
|
||||
# http://www.qp.gov.ab.ca/documents/spring/CH03_06.CFM
|
||||
@ -1170,7 +1195,7 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
|
||||
# http://www.hoa.gov.nl.ca/hoa/bills/Bill0634.htm
|
||||
# ...
|
||||
# Yukon
|
||||
# http://www.gov.yk.ca/legislation/regs/oic2006_127.pdf
|
||||
# https://www.gov.yk.ca/legislation/regs/oic2006_127.pdf
|
||||
# ...
|
||||
# N.W.T. will follow US rules. Whoever maintains the government web site
|
||||
# does not seem to believe in bookmarks. To see the news release, click the
|
||||
@ -1191,8 +1216,8 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
|
||||
# time and daylight saving time arrangements in Canada circa 1998.
|
||||
#
|
||||
# National Research Council Canada maintains info about time zones and DST.
|
||||
# http://www.nrc-cnrc.gc.ca/eng/services/time/time_zones.html
|
||||
# http://www.nrc-cnrc.gc.ca/eng/services/time/faq/index.html#Q5
|
||||
# https://www.nrc-cnrc.gc.ca/eng/services/time/time_zones.html
|
||||
# https://www.nrc-cnrc.gc.ca/eng/services/time/faq/index.html#Q5
|
||||
# Its unofficial information is often taken from Matthews and Vincent.
|
||||
|
||||
# From Paul Eggert (2006-06-27):
|
||||
@ -1229,11 +1254,13 @@ Rule Canada 2007 max - Nov Sun>=1 2:00 0 S
|
||||
|
||||
# Newfoundland and Labrador
|
||||
|
||||
# From Paul Eggert (2000-10-02):
|
||||
# Matthews and Vincent (1998) write that Labrador should use NST/NDT,
|
||||
# but the only part of Labrador that follows the rules is the
|
||||
# southeast corner, including Port Hope Simpson and Mary's Harbour,
|
||||
# but excluding, say, Black Tickle.
|
||||
# From Paul Eggert (2017-10-14):
|
||||
# Legally Labrador should observe Newfoundland time; see:
|
||||
# McLeod J. Labrador time - legal or not? St. John's Telegram, 2017-10-07
|
||||
# http://www.thetelegram.com/news/local/labrador-time--legal-or-not-154860/
|
||||
# Matthews and Vincent (1998) write that the only part of Labrador
|
||||
# that follows the rules is the southeast corner, including Port Hope
|
||||
# Simpson and Mary's Harbour, but excluding, say, Black Tickle.
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule StJohns 1917 only - Apr 8 2:00 1:00 D
|
||||
@ -1433,7 +1460,7 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
|
||||
# http://www.justice.gouv.qc.ca/english/publications/generale/temps-minganie-a.htm
|
||||
# that the coastal strip from just east of Natashquan to Blanc-Sablon
|
||||
# observes Atlantic standard time all year round.
|
||||
# http://www.assnat.qc.ca/Media/Process.aspx?MediaId=ANQ.Vigie.Bll.DocumentGenerique_8845en
|
||||
# https://www.assnat.qc.ca/Media/Process.aspx?MediaId=ANQ.Vigie.Bll.DocumentGenerique_8845en
|
||||
# says this common practice was codified into law as of 2007.
|
||||
# For lack of better info, guess this practice began around 1970, contra to
|
||||
# Shanks & Pottenger who have this region observing AST/ADT.
|
||||
@ -1465,6 +1492,11 @@ Zone America/Blanc-Sablon -3:48:28 - LMT 1884
|
||||
# earlier in June).
|
||||
#
|
||||
# Kenora, Ontario, was to abandon DST on 1914-06-01 (-05-21).
|
||||
#
|
||||
# From Paul Eggert (2017-07-08):
|
||||
# For more on Orillia, see: Daubs K. Bold attempt at daylight saving
|
||||
# time became a comic failure in Orillia. Toronto Star 2017-07-08.
|
||||
# https://www.thestar.com/news/insight/2017/07/08/bold-attempt-at-daylight-saving-time-became-a-comic-failure-in-orillia.html
|
||||
|
||||
# From Paul Eggert (1997-10-17):
|
||||
# Mark Brader writes that an article in the 1997-10-14 Toronto Star
|
||||
@ -1956,7 +1988,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
|
||||
# c. 7 defines Yukon standard time as UTC-9....
|
||||
# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
|
||||
# [http://canlii.ca/t/7vhg]
|
||||
# [https://www.canlii.org/en/ca/laws/stat/rsc-1985-c-i-21/latest/rsc-1985-c-i-21.html]
|
||||
# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
|
||||
# * O.I.C. 1980/02 established DST.
|
||||
# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
|
||||
@ -2021,7 +2053,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# hours behind Greenwich Time.
|
||||
#
|
||||
# * Yukon Standard Time defined as Pacific Standard Time, YCO 1973/214
|
||||
# http://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html
|
||||
# https://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html
|
||||
# C.O. 1973/214 INTERPRETATION ACT ...
|
||||
#
|
||||
# 1. Effective October 28, 1973 Commissioner's Order 1967/59 is hereby
|
||||
@ -2036,7 +2068,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# http://? - no online source found
|
||||
#
|
||||
# * Yukon Daylight Saving Time, YOIC 1987/56
|
||||
# http://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html
|
||||
# https://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html
|
||||
# O.I.C. 1987/056 INTERPRETATION ACT ...
|
||||
#
|
||||
# In every year between
|
||||
@ -2048,7 +2080,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# Dated ... 9th day of March, A.D., 1987.
|
||||
#
|
||||
# * Yukon Daylight Saving Time 2006, YOIC 2006/127
|
||||
# http://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html
|
||||
# https://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html
|
||||
# O.I.C. 2006/127 INTERPRETATION ACT ...
|
||||
#
|
||||
# 1. In Yukon each year the time for general purposes shall be 7 hours
|
||||
@ -2062,7 +2094,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# 3. This order comes into force January 1, 2007.
|
||||
#
|
||||
# * Interpretation Act, RSY 2002, c 125
|
||||
# http://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html
|
||||
# https://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html
|
||||
|
||||
# From Rives McDow (1999-09-04):
|
||||
# Nunavut ... moved ... to incorporate the whole territory into one time zone.
|
||||
@ -2105,7 +2137,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
|
||||
# From Michaela Rodrigue, writing in the
|
||||
# Nunatsiaq News (1999-11-19):
|
||||
# http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html
|
||||
# http://www.nunatsiaqonline.ca/archives/nunavut991130/nvt91119_17.html
|
||||
# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones,
|
||||
# central - or Nunavut time - for government offices, and eastern time
|
||||
# for municipal offices and schools.... Igloolik [was similar but then]
|
||||
@ -2123,7 +2155,7 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# Central Time and Southampton Island [in the Central zone] is not
|
||||
# required to use daylight savings.
|
||||
|
||||
# From <http://www.nunatsiaq.com/archives/nunavut001130/nvt21110_02.html>
|
||||
# From <http://www.nunatsiaqonline.ca/archives/nunavut001130/nvt21110_02.html>
|
||||
# Nunavut now has two time zones (2000-11-10):
|
||||
# The Nunavut government would allow its employees in Kugluktuk and
|
||||
# Cambridge Bay to operate on central time year-round, putting them
|
||||
@ -2454,7 +2486,7 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
|
||||
# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html
|
||||
#
|
||||
# Our page:
|
||||
# http://www.timeanddate.com/news/time/north-mexico-dst-change.html
|
||||
# https://www.timeanddate.com/news/time/north-mexico-dst-change.html
|
||||
|
||||
# From Arthur David Olson (2010-01-20):
|
||||
# The page
|
||||
@ -2873,7 +2905,7 @@ Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José
|
||||
# http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm
|
||||
#
|
||||
# Some more background information is posted here:
|
||||
# http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
|
||||
# https://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
|
||||
#
|
||||
# The article also says that Cuba has been observing DST since 1963,
|
||||
# while Shanks (and tzdata) has 1965 as the first date (except in the
|
||||
@ -2920,7 +2952,7 @@ Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José
|
||||
# http://granma.co.cu/2011/03/08/nacional/artic01.html
|
||||
#
|
||||
# Our info:
|
||||
# http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html
|
||||
# https://www.timeanddate.com/news/time/cuba-starts-dst-2011.html
|
||||
#
|
||||
# From Steffen Thorsen (2011-10-30)
|
||||
# Cuba will end DST two weeks later this year. Instead of going back
|
||||
@ -2930,7 +2962,7 @@ Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José
|
||||
# http://www.radioangulo.cu/noticias/cuba/17105-cuba-restablecera-el-horario-del-meridiano-de-greenwich.html
|
||||
#
|
||||
# Our page:
|
||||
# http://www.timeanddate.com/news/time/cuba-time-changes-2011.html
|
||||
# https://www.timeanddate.com/news/time/cuba-time-changes-2011.html
|
||||
#
|
||||
# From Steffen Thorsen (2012-03-01)
|
||||
# According to Radio Reloj, Cuba will start DST on Midnight between March
|
||||
@ -2940,7 +2972,7 @@ Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José
|
||||
# http://www.radioreloj.cu/index.php/noticias-radio-reloj/71-miscelaneas/7529-cuba-aplicara-el-horario-de-verano-desde-el-1-de-abril
|
||||
#
|
||||
# Our info on it:
|
||||
# http://www.timeanddate.com/news/time/cuba-starts-dst-2012.html
|
||||
# https://www.timeanddate.com/news/time/cuba-starts-dst-2012.html
|
||||
|
||||
# From Steffen Thorsen (2012-11-03):
|
||||
# Radio Reloj and many other sources report that Cuba is changing back
|
||||
@ -3135,8 +3167,8 @@ Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5
|
||||
# From Steffen Thorsen (2016-03-12):
|
||||
# Jean Antoine, editor of www.haiti-reference.com informed us that Haiti
|
||||
# are not going on DST this year. Several other resources confirm this: ...
|
||||
# http://www.radiotelevisioncaraibes.com/presse/heure_d_t_pas_de_changement_d_heure_pr_vu_pour_cet_ann_e.html
|
||||
# http://www.vantbefinfo.com/changement-dheure-pas-pour-haiti/
|
||||
# https://www.radiotelevisioncaraibes.com/presse/heure_d_t_pas_de_changement_d_heure_pr_vu_pour_cet_ann_e.html
|
||||
# https://www.vantbefinfo.com/changement-dheure-pas-pour-haiti/
|
||||
# http://news.anmwe.com/haiti-lheure-nationale-ne-sera-ni-avancee-ni-reculee-cette-annee/
|
||||
|
||||
# From Steffen Thorsen (2017-03-12):
|
||||
@ -3335,7 +3367,7 @@ Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
|
||||
# Turks and Caicos
|
||||
#
|
||||
# From Chris Dunn in
|
||||
# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=415007
|
||||
# https://bugs.debian.org/415007
|
||||
# (2007-03-15): In the Turks & Caicos Islands (America/Grand_Turk) the
|
||||
# daylight saving dates for time changes have been adjusted to match
|
||||
# the recent U.S. change of dates.
|
||||
@ -3357,12 +3389,25 @@ Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
|
||||
# "permanent daylight saving time" by one year....
|
||||
# http://tcweeklynews.com/time-change-to-go-ahead-this-november-p5437-127.htm
|
||||
#
|
||||
# From the Turks & Caicos Cabinet (2017-07-20), heads-up from Steffen Thorsen:
|
||||
# ... agreed to the reintroduction in TCI of Daylight Saving Time (DST)
|
||||
# during the summer months and Standard Time, also known as Local
|
||||
# Time, during the winter months with effect from April 2018 ...
|
||||
# https://www.gov.uk/government/news/turks-and-caicos-post-cabinet-meeting-statement--3
|
||||
#
|
||||
# From Paul Eggert (2017-08-26):
|
||||
# The date of effect of the spring 2018 change appears to be March 11,
|
||||
# which makes more sense. See: Hamilton D. Time change back
|
||||
# by March 2018 for TCI. Magnetic Media. 2017-08-25.
|
||||
# http://magneticmediatv.com/2017/08/time-change-back-by-march-2018-for-tci/
|
||||
#
|
||||
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
|
||||
Zone America/Grand_Turk -4:44:32 - LMT 1890
|
||||
-5:07:11 - KMT 1912 Feb # Kingston Mean Time
|
||||
-5:00 - EST 1979
|
||||
-5:00 US E%sT 2015 Nov Sun>=1 2:00
|
||||
-4:00 - AST
|
||||
-4:00 - AST 2018 Mar 11 3:00
|
||||
-5:00 US E%sT
|
||||
|
||||
# British Virgin Is
|
||||
# Virgin Is
|
||||
|
||||
@ -22,7 +22,7 @@
|
||||
#
|
||||
# For data circa 1899, a common source is:
|
||||
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
|
||||
# http://www.jstor.org/stable/1774359
|
||||
# https://www.jstor.org/stable/1774359
|
||||
#
|
||||
# These tables use numeric abbreviations like -03 and -0330 for
|
||||
# integer hour and minute UTC offsets. Although earlier editions used
|
||||
@ -265,8 +265,8 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
|
||||
#
|
||||
# Es inminente que en San Luis atrasen una hora los relojes
|
||||
# (It is imminent in San Luis clocks one hour delay)
|
||||
# http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html
|
||||
# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
|
||||
# https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html
|
||||
# http://www.worldtimezone.com/dst_news/dst_news_argentina02.html
|
||||
|
||||
# From Jesper Nørgaard Welen (2008-01-18):
|
||||
# The page of the San Luis provincial government
|
||||
@ -385,7 +385,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
|
||||
# Perhaps San Luis operates on the legal fiction that it is at -04
|
||||
# with perpetual summer time, but ordinary usage typically seems to
|
||||
# just say it's at -03; see, for example,
|
||||
# http://es.wikipedia.org/wiki/Hora_oficial_argentina
|
||||
# https://es.wikipedia.org/wiki/Hora_oficial_argentina
|
||||
# We've documented similar situations as being plain changes to
|
||||
# standard time, so let's do that here too. This does not change UTC
|
||||
# offsets, only tm_isdst and the time zone abbreviations. One minor
|
||||
@ -716,7 +716,7 @@ Zone America/La_Paz -4:32:36 - LMT 1890
|
||||
# (Portuguese)
|
||||
#
|
||||
# We have a written a short article about it as well:
|
||||
# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
|
||||
# https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
|
||||
#
|
||||
# From Alexander Krivenyshev (2011-10-04):
|
||||
# State Bahia will return to Daylight savings time this year after 8 years off.
|
||||
@ -725,7 +725,7 @@ Zone America/La_Paz -4:32:36 - LMT 1890
|
||||
|
||||
# In Portuguese:
|
||||
# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
|
||||
# http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
|
||||
# https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
|
||||
|
||||
# From Guilherme Bernardes Rodrigues (2011-10-07):
|
||||
# There is news in the media, however there is still no decree about it.
|
||||
@ -751,16 +751,16 @@ Zone America/La_Paz -4:32:36 - LMT 1890
|
||||
|
||||
# From Rodrigo Severo (2012-10-16):
|
||||
# Tocantins state will have DST.
|
||||
# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html
|
||||
# https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html
|
||||
|
||||
# From Steffen Thorsen (2013-09-20):
|
||||
# Tocantins in Brazil is very likely not to observe DST from October....
|
||||
# http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto
|
||||
# We will keep this article updated when this is confirmed:
|
||||
# http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html
|
||||
# https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html
|
||||
|
||||
# From Steffen Thorsen (2013-10-17):
|
||||
# http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html
|
||||
# https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html
|
||||
# Senator Jorge Viana announced that Acre will change time zone on November 10.
|
||||
# He did not specify the time of the change, nor if western parts of Amazonas
|
||||
# will change as well.
|
||||
@ -1076,18 +1076,18 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
|
||||
# the following source, cited by Oscar van Vlijmen (2006-10-08):
|
||||
# [1] Chile Law
|
||||
# http://www.webexhibits.org/daylightsaving/chile.html
|
||||
# This contains a copy of a this official table:
|
||||
# This contains a copy of this official table:
|
||||
# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30)
|
||||
# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm
|
||||
# https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm
|
||||
# [1] needs several corrections, though.
|
||||
#
|
||||
# The first set of corrections is from:
|
||||
# [2] History of the Official Time of Chile
|
||||
# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See:
|
||||
# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html
|
||||
# https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html
|
||||
# This is an English translation of:
|
||||
# Historia de la hora oficial de Chile (retrieved 2012-10-24). See:
|
||||
# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
|
||||
# https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
|
||||
# A fancier Spanish version (requiring mouse-clicking) is at:
|
||||
# http://www.horaoficial.cl/historia_hora.html
|
||||
# Conflicts between [1] and [2] were resolved as follows:
|
||||
@ -1363,10 +1363,10 @@ Link America/Curacao America/Kralendijk # Caribbean Netherlands
|
||||
# Milne says the Central and South American Telegraph Company used -5:24:15.
|
||||
#
|
||||
# From Alois Treindl (2016-12-15):
|
||||
# http://www.elcomercio.com/actualidad/hora-sixto-1993.html
|
||||
# https://www.elcomercio.com/actualidad/hora-sixto-1993.html
|
||||
# ... Whether the law applied also to Galápagos, I do not know.
|
||||
# From Paul Eggert (2016-12-15):
|
||||
# http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html
|
||||
# https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html
|
||||
# This says President Sixto Durán Ballén signed decree No. 285, which
|
||||
# established DST from 1992-11-28 to 1993-02-05; it does not give transition
|
||||
# times. The people called it "hora de Sixto" ("Sixto hour"). The change did
|
||||
@ -1778,7 +1778,7 @@ Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
|
||||
# hours of presidential broadcasts, hours of lines,' quipped comedian
|
||||
# Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps
|
||||
# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400
|
||||
# http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE
|
||||
# https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE
|
||||
#
|
||||
# From Matt Johnson (2016-04-20):
|
||||
# ... published in the official Gazette [2016-04-18], here:
|
||||
|
||||
1034
contrib/tzdata/theory.html
Normal file
1034
contrib/tzdata/theory.html
Normal file
File diff suppressed because it is too large
Load Diff
@ -1 +1 @@
|
||||
2017b
|
||||
2017c
|
||||
|
||||
156
contrib/tzdata/zishrink.awk
Normal file
156
contrib/tzdata/zishrink.awk
Normal file
@ -0,0 +1,156 @@
|
||||
# Convert tzdata source into a smaller version of itself.
|
||||
|
||||
# Contributed by Paul Eggert. This file is in the public domain.
|
||||
|
||||
# This is not a general-purpose converter; it is designed for current tzdata.
|
||||
# 'zic' should treat this script's output as if it were identical to
|
||||
# this script's input.
|
||||
|
||||
|
||||
# Return a new rule name.
|
||||
# N_RULE_NAMES keeps track of how many rule names have been generated.
|
||||
|
||||
function gen_rule_name(alphabet, base, rule_name, n, digit)
|
||||
{
|
||||
alphabet = ""
|
||||
alphabet = alphabet "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
||||
alphabet = alphabet "abcdefghijklmnopqrstuvwxyz"
|
||||
alphabet = alphabet "!$%&'()*+,./:;<=>?@[\\]^_`{|}~"
|
||||
base = length(alphabet)
|
||||
rule_name = ""
|
||||
n = n_rule_names++
|
||||
|
||||
do {
|
||||
n -= rule_name && n <= base
|
||||
digit = n % base
|
||||
rule_name = substr(alphabet, digit + 1, 1) rule_name
|
||||
n = (n - digit) / base
|
||||
} while (n);
|
||||
|
||||
return rule_name
|
||||
}
|
||||
|
||||
# Process an input line and save it for later output.
|
||||
|
||||
function process_input_line(line, field, end, i, n, startdef)
|
||||
{
|
||||
# Remove comments, normalize spaces, and append a space to each line.
|
||||
sub(/#.*/, "", line)
|
||||
line = line " "
|
||||
gsub(/[[:space:]]+/, " ", line)
|
||||
|
||||
# Abbreviate keywords. Do not abbreviate "Link" to just "L",
|
||||
# as pre-2017c zic erroneously diagnoses "Li" as ambiguous.
|
||||
sub(/^Link /, "Li ", line)
|
||||
sub(/^Rule /, "R ", line)
|
||||
sub(/^Zone /, "Z ", line)
|
||||
|
||||
# SystemV rules are not needed.
|
||||
if (line ~ /^R SystemV /) return
|
||||
|
||||
# Replace FooAsia rules with the same rules without "Asia", as they
|
||||
# are duplicates.
|
||||
if (match(line, /[^ ]Asia /)) {
|
||||
if (line ~ /^R /) return
|
||||
line = substr(line, 1, RSTART) substr(line, RSTART + 5)
|
||||
}
|
||||
|
||||
# Abbreviate times.
|
||||
while (match(line, /[: ]0+[0-9]/))
|
||||
line = substr(line, 1, RSTART) substr(line, RSTART + RLENGTH - 1)
|
||||
while (match(line, /:0[^:]/))
|
||||
line = substr(line, 1, RSTART - 1) substr(line, RSTART + 2)
|
||||
|
||||
# Abbreviate weekday names. Do not abbreviate "Sun" and "Sat", as
|
||||
# pre-2017c zic erroneously diagnoses "Su" and "Sa" as ambiguous.
|
||||
while (match(line, / (last)?(Mon|Wed|Fri)[ <>]/)) {
|
||||
end = RSTART + RLENGTH
|
||||
line = substr(line, 1, end - 4) substr(line, end - 1)
|
||||
}
|
||||
while (match(line, / (last)?(Tue|Thu)[ <>]/)) {
|
||||
end = RSTART + RLENGTH
|
||||
line = substr(line, 1, end - 3) substr(line, end - 1)
|
||||
}
|
||||
|
||||
# Abbreviate "max", "only" and month names.
|
||||
# Do not abbreviate "min", as pre-2017c zic erroneously diagnoses "mi"
|
||||
# as ambiguous.
|
||||
gsub(/ max /, " ma ", line)
|
||||
gsub(/ only /, " o ", line)
|
||||
gsub(/ Jan /, " Ja ", line)
|
||||
gsub(/ Feb /, " F ", line)
|
||||
gsub(/ Apr /, " Ap ", line)
|
||||
gsub(/ Aug /, " Au ", line)
|
||||
gsub(/ Sep /, " S ", line)
|
||||
gsub(/ Oct /, " O ", line)
|
||||
gsub(/ Nov /, " N ", line)
|
||||
gsub(/ Dec /, " D ", line)
|
||||
|
||||
# Strip leading and trailing space.
|
||||
sub(/^ /, "", line)
|
||||
sub(/ $/, "", line)
|
||||
|
||||
# Remove unnecessary trailing zero fields.
|
||||
sub(/ 0+$/, "", line)
|
||||
|
||||
# Remove unnecessary trailing days-of-month "1".
|
||||
if (match(line, /[[:alpha:]] 1$/))
|
||||
line = substr(line, 1, RSTART)
|
||||
|
||||
# Remove unnecessary trailing " Ja" (for January).
|
||||
sub(/ Ja$/, "", line)
|
||||
|
||||
n = split(line, field)
|
||||
|
||||
# Abbreviate rule names.
|
||||
i = field[1] == "Z" ? 4 : field[1] == "Li" ? 0 : 2
|
||||
if (i && field[i] ~ /^[^-+0-9]/) {
|
||||
if (!rule[field[i]])
|
||||
rule[field[i]] = gen_rule_name()
|
||||
field[i] = rule[field[i]]
|
||||
}
|
||||
|
||||
# If this zone supersedes an earlier one, delete the earlier one
|
||||
# from the saved output lines.
|
||||
startdef = ""
|
||||
if (field[1] == "Z")
|
||||
zonename = startdef = field[2]
|
||||
else if (field[1] == "Li")
|
||||
zonename = startdef = field[3]
|
||||
else if (field[1] == "R")
|
||||
zonename = ""
|
||||
if (startdef) {
|
||||
i = zonedef[startdef]
|
||||
if (i) {
|
||||
do
|
||||
output_line[i - 1] = ""
|
||||
while (output_line[i++] ~ /^[-+0-9]/);
|
||||
}
|
||||
}
|
||||
zonedef[zonename] = nout + 1
|
||||
|
||||
# Save the line for later output.
|
||||
line = field[1]
|
||||
for (i = 2; i <= n; i++)
|
||||
line = line " " field[i]
|
||||
output_line[nout++] = line
|
||||
}
|
||||
|
||||
function output_saved_lines(i)
|
||||
{
|
||||
for (i = 0; i < nout; i++)
|
||||
if (output_line[i])
|
||||
print output_line[i]
|
||||
}
|
||||
|
||||
BEGIN {
|
||||
print "# This zic input file is in the public domain."
|
||||
}
|
||||
|
||||
/^[[:space:]]*[^#[:space:]]/ {
|
||||
process_input_line($0)
|
||||
}
|
||||
|
||||
END {
|
||||
output_saved_lines()
|
||||
}
|
||||
@ -186,7 +186,7 @@ GB +513030-0000731 Europe/London
|
||||
GD +1203-06145 America/Grenada
|
||||
GE +4143+04449 Asia/Tbilisi
|
||||
GF +0456-05220 America/Cayenne
|
||||
GG +4927-00232 Europe/Guernsey
|
||||
GG +492717-0023210 Europe/Guernsey
|
||||
GH +0533-00013 Africa/Accra
|
||||
GI +3608-00521 Europe/Gibraltar
|
||||
GL +6411-05144 America/Godthab Greenland (most areas)
|
||||
@ -221,7 +221,7 @@ IQ +3321+04425 Asia/Baghdad
|
||||
IR +3540+05126 Asia/Tehran
|
||||
IS +6409-02151 Atlantic/Reykjavik
|
||||
IT +4154+01229 Europe/Rome
|
||||
JE +4912-00207 Europe/Jersey
|
||||
JE +491101-0020624 Europe/Jersey
|
||||
JM +175805-0764736 America/Jamaica
|
||||
JO +3157+03556 Asia/Amman
|
||||
JP +353916+1394441 Asia/Tokyo
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
#
|
||||
# This file is in the public domain.
|
||||
#
|
||||
# From Paul Eggert (2014-07-31):
|
||||
# From Paul Eggert (2017-10-01):
|
||||
# This file contains a table where each row stands for a zone where
|
||||
# civil time stamps have agreed since 1970. Columns are separated by
|
||||
# a single tab. Lines beginning with '#' are comments. All text uses
|
||||
@ -16,7 +16,7 @@
|
||||
# either +-DDMM+-DDDMM or +-DDMMSS+-DDDMMSS,
|
||||
# first latitude (+ is north), then longitude (+ is east).
|
||||
# 3. Zone name used in value of TZ environment variable.
|
||||
# Please see the 'Theory' file for how zone names are chosen.
|
||||
# Please see the theory.html file for how zone names are chosen.
|
||||
# If multiple zones overlap a country, each has a row in the
|
||||
# table, with each column 1 containing the country code.
|
||||
# 4. Comments; present if and only if a country has multiple zones.
|
||||
@ -317,10 +317,11 @@ RU +6445+17729 Asia/Anadyr MSK+09 - Bering Sea
|
||||
SA,KW,YE +2438+04643 Asia/Riyadh
|
||||
SB -0932+16012 Pacific/Guadalcanal
|
||||
SC -0440+05528 Indian/Mahe
|
||||
SD,SS +1536+03232 Africa/Khartoum
|
||||
SD +1536+03232 Africa/Khartoum
|
||||
SE +5920+01803 Europe/Stockholm
|
||||
SG +0117+10351 Asia/Singapore
|
||||
SR +0550-05510 America/Paramaribo
|
||||
SS +0451+03137 Africa/Juba
|
||||
SV +1342-08912 America/El_Salvador
|
||||
SY +3330+03618 Asia/Damascus
|
||||
TC +2128-07108 America/Grand_Turk
|
||||
|
||||
Loading…
Reference in New Issue
Block a user