Import tzdata 2020a
This commit is contained in:
Philip Paeps
parent
2eb2d45aab
commit
545922d605
38
Makefile
38
Makefile
@ -150,6 +150,15 @@ TIME_T_ALTERNATIVES_TAIL = int32_t uint32_t uint64_t
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REDO= posix_right
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# Whether to put an "Expires" line in the leapseconds file.
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# Use EXPIRES_LINE=1 to put the line in, 0 to omit it.
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# The EXPIRES_LINE value matters only if REDO's value contains "right".
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# If you change EXPIRES_LINE, remove the leapseconds file before running "make".
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# zic's support for the Expires line was introduced in tzdb 2020a,
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# and EXPIRES_LINE defaults to 0 for now so that the leapseconds file
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# can be given to older zic implementations.
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EXPIRES_LINE= 0
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# To install data in text form that has all the information of the TZif data,
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# (optionally incorporating leap second information), use
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# TZDATA_TEXT= tzdata.zi leapseconds
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@ -295,8 +304,9 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
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# than TM_GMTOFF and TM_ZONE. However, most of them are standardized.
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# #
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# # To omit or support the external variable "tzname", add one of:
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# # -DHAVE_TZNAME=0
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# # -DHAVE_TZNAME=1
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# # -DHAVE_TZNAME=0 # do not support "tzname"
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# # -DHAVE_TZNAME=1 # support "tzname", which is defined by system library
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# # -DHAVE_TZNAME=2 # support and define "tzname"
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# # to the "CFLAGS=" line. "tzname" is required by POSIX 1988 and later.
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# # If not defined, the code attempts to guess HAVE_TZNAME from other macros.
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# # Warning: unless time_tz is also defined, HAVE_TZNAME=1 can cause
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@ -304,16 +314,20 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
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# # presumably due to memory allocation issues.
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# #
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# # To omit or support the external variables "timezone" and "daylight", add
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# # -DUSG_COMPAT=0
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# # -DUSG_COMPAT=1
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# # -DUSG_COMPAT=0 # do not support
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# # -DUSG_COMPAT=1 # support, and variables are defined by system library
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# # -DUSG_COMPAT=2 # support and define variables
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# # to the "CFLAGS=" line; "timezone" and "daylight" are inspired by
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# # Unix Systems Group code and are required by POSIX 2008 (with XSI) and later.
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# # If not defined, the code attempts to guess USG_COMPAT from other macros.
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# #
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# # To support the external variable "altzone", add
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# # -DALTZONE
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# # -DALTZONE=0 # do not support
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# # -DALTZONE=1 # support "altzone", which is defined by system library
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# # -DALTZONE=2 # support and define "altzone"
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# # to the end of the "CFLAGS=" line; although "altzone" appeared in
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# # System V Release 3.1 it has not been standardized.
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# # If not defined, the code attempts to guess ALTZONE from other macros.
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#
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# If you want functions that were inspired by early versions of X3J11's work,
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# add
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@ -321,9 +335,7 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
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# to the end of the "CFLAGS=" line. This arranges for the functions
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# "tzsetwall", "offtime", "timelocal", "timegm", "timeoff",
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# "posix2time", and "time2posix" to be added to the time conversion library.
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# "tzsetwall" is like "tzset" except that it arranges for local wall clock
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# time (rather than the timezone specified in the TZ environment variable)
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# to be used.
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# "tzsetwall" is deprecated and is intended to be removed soon; see NEWS.
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# "offtime" is like "gmtime" except that it accepts a second (long) argument
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# that gives an offset to add to the time_t when converting it.
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# "timelocal" is equivalent to "mktime".
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@ -333,7 +345,6 @@ GCC_DEBUG_FLAGS = -DGCC_LINT -g3 -O3 -fno-common \
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# that gives an offset to use when converting to a time_t.
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# "posix2time" and "time2posix" are described in an included manual page.
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# X3J11's work does not describe any of these functions.
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# Sun has provided "tzsetwall", "timelocal", and "timegm" in SunOS 4.0.
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# These functions may well disappear in future releases of the time
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# conversion package.
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#
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@ -505,11 +516,11 @@ RANLIB= :
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TZCOBJS= zic.o
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TZDOBJS= zdump.o localtime.o asctime.o strftime.o
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DATEOBJS= date.o localtime.o strftime.o asctime.o
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LIBSRCS= localtime.c asctime.c difftime.c
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LIBOBJS= localtime.o asctime.o difftime.o
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LIBSRCS= localtime.c asctime.c difftime.c strftime.c
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LIBOBJS= localtime.o asctime.o difftime.o strftime.o
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HEADERS= tzfile.h private.h
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NONLIBSRCS= zic.c zdump.c
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NEWUCBSRCS= date.c strftime.c
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NEWUCBSRCS= date.c
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SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) \
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tzselect.ksh workman.sh
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MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \
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@ -651,7 +662,8 @@ yearistype: yearistype.sh
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chmod +x yearistype
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leapseconds: $(LEAP_DEPS)
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$(AWK) -f leapseconds.awk leap-seconds.list >$@.out
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$(AWK) -v EXPIRES_LINE=$(EXPIRES_LINE) \
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-f leapseconds.awk leap-seconds.list >$@.out
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mv $@.out $@
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# Arguments to pass to submakes of install_data.
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82
NEWS
82
NEWS
@ -1,5 +1,87 @@
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News for the tz database
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Release 2020a - 2020-04-23 16:03:47 -0700
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Briefly:
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Morocco springs forward on 2020-05-31, not 2020-05-24.
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Canada's Yukon advanced to -07 year-round on 2020-03-08.
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America/Nuuk renamed from America/Godthab.
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zic now supports expiration dates for leap second lists.
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Changes to future timestamps
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Morocco's second spring-forward transition in 2020 will be May 31,
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not May 24 as predicted earlier. (Thanks to Semlali Naoufal.)
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Adjust future-year predictions to use the first Sunday after the
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day after Ramadan, not the first Sunday after Ramadan.
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Canada's Yukon, represented by America/Whitehorse and
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America/Dawson, advanced to -07 year-round, beginning with its
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spring-forward transition on 2020-03-08, and will not fall back on
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2020-11-01. Although a government press release calls this
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"permanent Pacific Daylight Saving Time", we prefer MST for
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consistency with nearby Dawson Creek, Creston, and Fort Nelson.
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(Thanks to Tim Parenti.)
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Changes to past timestamps
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Shanghai observed DST in 1919. (Thanks to Phake Nick.)
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Changes to timezone identifiers
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To reflect current usage in English better, America/Godthab has
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been renamed to America/Nuuk. A backwards-compatibility link
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remains for the old name.
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Changes to code
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localtime.c no longer mishandles timestamps after the last
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transition in a TZif file with leap seconds and with daylight
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saving time transitions projected into the indefinite future.
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For example, with TZ='America/Los_Angeles' with leap seconds,
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zdump formerly reported a DST transition on 2038-03-14
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from 01:59:32.999... to 02:59:33 instead of the correct transition
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from 01:59:59.999... to 03:00:00.
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zic -L now supports an Expires line in the leapseconds file, and
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truncates the TZif output accordingly. This propagates leap
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second expiration information into the TZif file, and avoids the
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abovementioned localtime.c bug as well as similar bugs present in
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many client implementations. If no Expires line is present, zic
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-L instead truncates the TZif output based on the #expires comment
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present in leapseconds files distributed by tzdb 2018f and later;
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however, this usage is obsolescent. For now, the distributed
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leapseconds file has an Expires line that is commented out, so
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that the file can be fed to older versions of zic which ignore the
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commented-out line. Future tzdb distributions are planned to
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contain a leapseconds file with an Expires line.
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The configuration macros HAVE_TZNAME and USG_COMPAT should now be
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set to 1 if the system library supports the feature, and 2 if not.
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As before, these macros are nonzero if tzcode should support the
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feature, zero otherwise.
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The configuration macro ALTZONE now has the same values with the
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same meaning as HAVE_TZNAME and USG_COMPAT.
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The code's defense against CRLF in leap-seconds.list is now
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portable to POSIX awk. (Problem reported by Deborah Goldsmith.)
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Although the undocumented tzsetwall function is not changed in
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this release, it is now deprecated in preparation for removal in
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future releases. Due to POSIX requirements, tzsetwall has not
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worked for some time. Any code that uses it should instead use
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tzalloc(NULL) or, if portability trumps thread-safety, should
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unset the TZ environment variable.
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Changes to commentary
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The Îles-de-la-Madeleine and the Listuguj reserve are noted as
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following America/Halifax, and comments about Yukon's "south" and
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"north" have been corrected to say "east" and "west". (Thanks to
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Jeffery Nichols.)
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Release 2019c - 2019-09-11 08:59:48 -0700
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Briefly:
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52
africa
52
africa
@ -867,19 +867,25 @@ Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
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# Morocco will be on GMT starting from Sunday, May 5th 2019 at 3am.
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# The switch to GMT+1 will occur on Sunday, June 9th 2019 at 2am....
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# http://fr.le360.ma/societe/voici-la-date-du-retour-a-lheure-legale-au-maroc-188222
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# From Semlali Naoufal (2020-04-14):
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# Following the announcement by the Moroccan government, the switch to
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# GMT time will take place on Sunday, April 19, 2020 from 3 a.m. and
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# the return to GMT+1 time will take place on Sunday, May 31, 2020 at 2 a.m....
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# https://maroc-diplomatique.net/maroc-le-retour-a-lheure-gmt-est-prevu-dimanche-prochain/
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# http://aujourdhui.ma/actualite/gmt1-retour-a-lheure-normale-dimanche-prochain-1
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#
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# From Paul Eggert (2019-05-20):
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# This agrees with our 2018-11-01 guess that the Moroccan government
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# would continue the practice of falling back at 03:00 the last Sunday
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# before Ramadan, and of springing forward at 02:00 the first Sunday after
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# Ramadan, as this has been the practice since 2012. To implement this,
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# transition dates for 2019 through 2087 were determined by running the
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# following program under GNU Emacs 26.2.
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# (let ((islamic-year 1440))
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# From Paul Eggert (2020-04-14):
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# For now, guess that in the future Morocco will fall back at 03:00
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# the last Sunday before Ramadan, and spring forward at 02:00 the
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# first Sunday after the day after Ramadan. To implement this,
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# transition dates for 2021 through 2087 were determined by running
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# the following program under GNU Emacs 26.3.
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# (let ((islamic-year 1442))
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# (require 'cal-islam)
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# (while (< islamic-year 1511)
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# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
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# (b (calendar-islamic-to-absolute (list 10 1 islamic-year)))
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# (b (1+ (calendar-islamic-to-absolute (list 10 1 islamic-year))))
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# (sunday 0))
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# (while (/= sunday (mod (setq a (1- a)) 7)))
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# (while (/= sunday (mod b 7))
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@ -939,7 +945,7 @@ Rule Morocco 2018 only - Jun 17 2:00 1:00 -
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Rule Morocco 2019 only - May 5 3:00 -1:00 -
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Rule Morocco 2019 only - Jun 9 2:00 0 -
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Rule Morocco 2020 only - Apr 19 3:00 -1:00 -
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Rule Morocco 2020 only - May 24 2:00 0 -
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Rule Morocco 2020 only - May 31 2:00 0 -
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Rule Morocco 2021 only - Apr 11 3:00 -1:00 -
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Rule Morocco 2021 only - May 16 2:00 0 -
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Rule Morocco 2022 only - Mar 27 3:00 -1:00 -
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@ -955,7 +961,7 @@ Rule Morocco 2026 only - Mar 22 2:00 0 -
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Rule Morocco 2027 only - Feb 7 3:00 -1:00 -
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Rule Morocco 2027 only - Mar 14 2:00 0 -
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Rule Morocco 2028 only - Jan 23 3:00 -1:00 -
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Rule Morocco 2028 only - Feb 27 2:00 0 -
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Rule Morocco 2028 only - Mar 5 2:00 0 -
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Rule Morocco 2029 only - Jan 14 3:00 -1:00 -
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Rule Morocco 2029 only - Feb 18 2:00 0 -
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Rule Morocco 2029 only - Dec 30 3:00 -1:00 -
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@ -971,7 +977,7 @@ Rule Morocco 2033 only - Dec 25 2:00 0 -
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Rule Morocco 2034 only - Nov 5 3:00 -1:00 -
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Rule Morocco 2034 only - Dec 17 2:00 0 -
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Rule Morocco 2035 only - Oct 28 3:00 -1:00 -
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Rule Morocco 2035 only - Dec 2 2:00 0 -
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Rule Morocco 2035 only - Dec 9 2:00 0 -
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Rule Morocco 2036 only - Oct 19 3:00 -1:00 -
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Rule Morocco 2036 only - Nov 23 2:00 0 -
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Rule Morocco 2037 only - Oct 4 3:00 -1:00 -
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@ -987,7 +993,7 @@ Rule Morocco 2041 only - Sep 29 2:00 0 -
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Rule Morocco 2042 only - Aug 10 3:00 -1:00 -
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Rule Morocco 2042 only - Sep 21 2:00 0 -
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Rule Morocco 2043 only - Aug 2 3:00 -1:00 -
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Rule Morocco 2043 only - Sep 6 2:00 0 -
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Rule Morocco 2043 only - Sep 13 2:00 0 -
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Rule Morocco 2044 only - Jul 24 3:00 -1:00 -
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Rule Morocco 2044 only - Aug 28 2:00 0 -
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Rule Morocco 2045 only - Jul 9 3:00 -1:00 -
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@ -1003,7 +1009,7 @@ Rule Morocco 2049 only - Jul 4 2:00 0 -
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Rule Morocco 2050 only - May 15 3:00 -1:00 -
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Rule Morocco 2050 only - Jun 26 2:00 0 -
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Rule Morocco 2051 only - May 7 3:00 -1:00 -
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Rule Morocco 2051 only - Jun 11 2:00 0 -
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Rule Morocco 2051 only - Jun 18 2:00 0 -
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Rule Morocco 2052 only - Apr 28 3:00 -1:00 -
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Rule Morocco 2052 only - Jun 2 2:00 0 -
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Rule Morocco 2053 only - Apr 13 3:00 -1:00 -
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@ -1019,7 +1025,7 @@ Rule Morocco 2057 only - Apr 8 2:00 0 -
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Rule Morocco 2058 only - Feb 17 3:00 -1:00 -
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Rule Morocco 2058 only - Mar 31 2:00 0 -
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Rule Morocco 2059 only - Feb 9 3:00 -1:00 -
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Rule Morocco 2059 only - Mar 16 2:00 0 -
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Rule Morocco 2059 only - Mar 23 2:00 0 -
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Rule Morocco 2060 only - Feb 1 3:00 -1:00 -
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Rule Morocco 2060 only - Mar 7 2:00 0 -
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Rule Morocco 2061 only - Jan 16 3:00 -1:00 -
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@ -1029,13 +1035,13 @@ Rule Morocco 2062 only - Feb 12 2:00 0 -
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Rule Morocco 2062 only - Dec 31 3:00 -1:00 -
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Rule Morocco 2063 only - Feb 4 2:00 0 -
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Rule Morocco 2063 only - Dec 16 3:00 -1:00 -
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Rule Morocco 2064 only - Jan 20 2:00 0 -
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Rule Morocco 2064 only - Jan 27 2:00 0 -
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Rule Morocco 2064 only - Dec 7 3:00 -1:00 -
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Rule Morocco 2065 only - Jan 11 2:00 0 -
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Rule Morocco 2065 only - Nov 22 3:00 -1:00 -
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Rule Morocco 2066 only - Jan 3 2:00 0 -
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Rule Morocco 2066 only - Nov 14 3:00 -1:00 -
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Rule Morocco 2066 only - Dec 19 2:00 0 -
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Rule Morocco 2066 only - Dec 26 2:00 0 -
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Rule Morocco 2067 only - Nov 6 3:00 -1:00 -
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Rule Morocco 2067 only - Dec 11 2:00 0 -
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Rule Morocco 2068 only - Oct 21 3:00 -1:00 -
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@ -1045,13 +1051,13 @@ Rule Morocco 2069 only - Nov 17 2:00 0 -
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Rule Morocco 2070 only - Oct 5 3:00 -1:00 -
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Rule Morocco 2070 only - Nov 9 2:00 0 -
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Rule Morocco 2071 only - Sep 20 3:00 -1:00 -
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Rule Morocco 2071 only - Oct 25 2:00 0 -
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Rule Morocco 2071 only - Nov 1 2:00 0 -
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Rule Morocco 2072 only - Sep 11 3:00 -1:00 -
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Rule Morocco 2072 only - Oct 16 2:00 0 -
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Rule Morocco 2073 only - Aug 27 3:00 -1:00 -
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Rule Morocco 2073 only - Oct 8 2:00 0 -
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Rule Morocco 2074 only - Aug 19 3:00 -1:00 -
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Rule Morocco 2074 only - Sep 23 2:00 0 -
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Rule Morocco 2074 only - Sep 30 2:00 0 -
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Rule Morocco 2075 only - Aug 11 3:00 -1:00 -
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Rule Morocco 2075 only - Sep 15 2:00 0 -
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Rule Morocco 2076 only - Jul 26 3:00 -1:00 -
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@ -1061,7 +1067,7 @@ Rule Morocco 2077 only - Aug 22 2:00 0 -
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Rule Morocco 2078 only - Jul 10 3:00 -1:00 -
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Rule Morocco 2078 only - Aug 14 2:00 0 -
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Rule Morocco 2079 only - Jun 25 3:00 -1:00 -
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Rule Morocco 2079 only - Jul 30 2:00 0 -
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Rule Morocco 2079 only - Aug 6 2:00 0 -
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Rule Morocco 2080 only - Jun 16 3:00 -1:00 -
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Rule Morocco 2080 only - Jul 21 2:00 0 -
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Rule Morocco 2081 only - Jun 1 3:00 -1:00 -
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@ -1077,7 +1083,7 @@ Rule Morocco 2085 only - May 27 2:00 0 -
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Rule Morocco 2086 only - Apr 14 3:00 -1:00 -
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Rule Morocco 2086 only - May 19 2:00 0 -
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Rule Morocco 2087 only - Mar 30 3:00 -1:00 -
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Rule Morocco 2087 only - May 4 2:00 0 -
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Rule Morocco 2087 only - May 11 2:00 0 -
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# For dates after the somewhat-arbitrary cutoff of 2087, assume that
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# Morocco will no longer observe DST. At some point this table will
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# need to be extended, though quite possibly Morocco will change the
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@ -1179,7 +1185,7 @@ Link Africa/Maputo Africa/Lusaka # Zambia
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Rule Namibia 1994 only - Mar 21 0:00 -1:00 WAT
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Rule Namibia 1994 2017 - Sep Sun>=1 2:00 0 CAT
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Rule Namibia 1995 2017 - Apr Sun>=1 2:00 -1:00 WAT
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# Rearguard section, for parsers that do not support negative DST.
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# Rearguard section, for parsers lacking negative DST; see ziguard.awk.
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#Rule Namibia 1994 only - Mar 21 0:00 0 WAT
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#Rule Namibia 1994 2017 - Sep Sun>=1 2:00 1:00 CAT
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#Rule Namibia 1995 2017 - Apr Sun>=1 2:00 0 WAT
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@ -1193,7 +1199,7 @@ Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
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2:00 - SAST 1990 Mar 21 # independence
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# Vanguard section, for zic and other parsers that support negative DST.
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2:00 Namibia %s
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# Rearguard section, for parsers that do not support negative DST.
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# Rearguard section, for parsers lacking negative DST; see ziguard.awk.
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# 2:00 - CAT 1994 Mar 21 0:00
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# From Paul Eggert (2017-04-07):
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# The official date of the 2017 rule change was 2017-10-24. See:
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212
asia
212
asia
@ -286,6 +286,27 @@ Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
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# China
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# From Phake Nick (2020-04-15):
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# According to this news report:
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# http://news.sina.com.cn/c/2004-09-01/19524201403.shtml
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# on April 11, 1919, newspaper in Shanghai said clocks in Shanghai will spring
|
||||
# forward for an hour starting from midnight of that Saturday. The report did
|
||||
# not mention what happened in Shanghai thereafter, but it mentioned that a
|
||||
# similar trial in Tianjin which ended at October 1st as citizens are told to
|
||||
# recede the clock on September 30 from 12:00pm to 11:00pm. The trial at
|
||||
# Tianjin got terminated in 1920.
|
||||
#
|
||||
# From Paul Eggert (2020-04-15):
|
||||
# The Returns of Trade and Trade Reports, page 711, says "Daylight saving was
|
||||
# given a trial during the year, and from the 12th April to the 1st October
|
||||
# the clocks were all set one hour ahead of sun time. Though the scheme was
|
||||
# generally esteemed a success, it was announced early in 1920 that it would
|
||||
# not be repeated."
|
||||
#
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Shang 1919 only - Apr 12 24:00 1:00 D
|
||||
Rule Shang 1919 only - Sep 30 24:00 0 S
|
||||
|
||||
# From Paul Eggert (2018-10-02):
|
||||
# The following comes from Table 1 of:
|
||||
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
|
||||
@ -294,6 +315,89 @@ Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
|
||||
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
|
||||
# Also, the table lists the planned end of DST in 1949, but the corresponding
|
||||
# zone line cuts this off on May 28, when the Communists took power.
|
||||
|
||||
# From Phake Nick (2020-04-15):
|
||||
#
|
||||
# For the history of time in Shanghai between 1940-1942, the situation is
|
||||
# actually slightly more complex than the table [below].... At the time,
|
||||
# there were three different authorities in Shanghai, including Shanghai
|
||||
# International Settlement, a settlement established by western countries with
|
||||
# its own westernized form of government, Shanghai French Concession, similar
|
||||
# to the international settlement but is controlled by French, and then the
|
||||
# rest of the city of Shanghai, which have already been controlled by Japanese
|
||||
# force through a puppet local government (Wang Jingwei regime). It was
|
||||
# additionally complicated by the circumstances that, according to the 1940s
|
||||
# Shanghai summer time essay cited in the database, some
|
||||
# departments/businesses/people in the Shanghai city itself during that time
|
||||
# period, refused to change their clock and instead only changed their opening
|
||||
# hours.
|
||||
#
|
||||
# For example, as quoted in the article, in 1940, other than the authority
|
||||
# itself, power, tram, bus companies, cinema, department stores, and other
|
||||
# public service organizations have all decided to follow the summer time and
|
||||
# spring forward the clock. On the other hand, the custom office refused to
|
||||
# spring forward the clock because of worry on mechanical wear to the physical
|
||||
# clock, postal office refused to spring forward because of disruption to
|
||||
# business and log-keeping, although they did changed their office hour to
|
||||
# match rest of the city. So is travel agents, and also weather
|
||||
# observatory. It is said both time standards had their own supporters in the
|
||||
# city at the time, those who prefer new time standard would have moved their
|
||||
# clock while those who prefer the old time standard would keep their clock
|
||||
# unchange, and there were different clocks that use different time standard
|
||||
# in the city at the time for people who use different time standard to adjust
|
||||
# their clock to their preferred time.
|
||||
#
|
||||
# a. For the 1940 May 31 spring forward, the essay claim that it was
|
||||
# coordinared between the international settlement authority and the French
|
||||
# concession authority and have gathered support from Hong Kong and Xiamen,
|
||||
# that it would spring forward an hour from May 31 "midnight", and the essay
|
||||
# claim "Hong Kong government implemented the spring forward in the same time
|
||||
# on the same date as Shanghai".
|
||||
#
|
||||
# b. For the 1940 fall back, it was said that they initially intended to do
|
||||
# so on September 30 00:59 at night, however they postponed it to October 12
|
||||
# after discussion with relevant parties. However schools restored to the
|
||||
# original schedule ten days earlier.
|
||||
#
|
||||
# c. For the 1941 spring forward, it is said to start from March 15
|
||||
# "following the previous year's method", and in addition to that the essay
|
||||
# cited an announcement in 1941 from the Wang regime which said the Special
|
||||
# City of Shanghai under Wang regime control will follow the DST rule set by
|
||||
# the Settlements, irrespective of the original DST plan announced by the Wang
|
||||
# regime for other area under its control(April 1 to September 30). (no idea
|
||||
# to situation before that announcement)
|
||||
#
|
||||
# d. For the 1941 fall back, it was said that the fall back would occurs at
|
||||
# the end of September (A newspaper headline cited by the essay, published on
|
||||
# October 1, 1941, have the headlines which said "French Concession would
|
||||
# rewind to the old clock this morning), but it ultimately didn't happen due
|
||||
# to disagreement between the international settlement authority and the
|
||||
# French concession authority, and the fall back ultimately occurred on
|
||||
# November 1.
|
||||
#
|
||||
# e. In 1941 December, Japan have officially started war with the United
|
||||
# States and the United Kingdom, and in Shanghai they have marched into the
|
||||
# international settlement, taken over its control
|
||||
#
|
||||
# f. For the 1942 spring forward, the essay said that the spring forward
|
||||
# started on January 31. It said this time the custom office and postal
|
||||
# department will also change their clocks, unlike before.
|
||||
#
|
||||
# g. The essay itself didn't cover any specific changes thereafter until the
|
||||
# end of the war, it quoted a November 1942 command from the government of the
|
||||
# Wang regime, which claim the daylight saving time applies year round during
|
||||
# the war. However, the essay ambiguously said the period is "February 1 to
|
||||
# September 30", which I don't really understand what is the meaning of such
|
||||
# period in the context of year round implementation here.. More researches
|
||||
# might be needed to show exactly what happened during that period of time.
|
||||
|
||||
# From Phake Nick (2020-04-15):
|
||||
# According to a Japanese tour bus pamphlet in Nanjing area believed to be
|
||||
# from around year 1941: http://www.tt-museum.jp/tairiku_0280_nan1941.html ,
|
||||
# the schedule listed was in the format of Japanese time. Which indicate some
|
||||
# use of the Japanese time (instead of syncing by DST) might have occurred in
|
||||
# the Yangtze river delta area during that period of time although the scope
|
||||
# of such use will need to be investigated to determine.
|
||||
#
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Shang 1940 only - Jun 1 0:00 1:00 D
|
||||
@ -572,7 +676,7 @@ Zone Asia/Urumqi 5:50:20 - LMT 1928
|
||||
6:00 - +06
|
||||
|
||||
|
||||
# Hong Kong (Xianggang)
|
||||
# Hong Kong
|
||||
|
||||
# Milne gives 7:36:41.7; round this.
|
||||
|
||||
@ -582,9 +686,7 @@ Zone Asia/Urumqi 5:50:20 - LMT 1928
|
||||
# it is not [an] observatory, but the official meteorological agency of HK,
|
||||
# and also serves as the official timing agency), there are some missing
|
||||
# and incorrect rules. Although the exact switch over time is missing, I
|
||||
# think 3:30 is correct. The official DST record for Hong Kong can be
|
||||
# obtained from
|
||||
# http://www.hko.gov.hk/gts/time/Summertime.htm
|
||||
# think 3:30 is correct.
|
||||
|
||||
# From Phake Nick (2018-10-27):
|
||||
# According to Singaporean newspaper
|
||||
@ -695,10 +797,10 @@ Zone Asia/Urumqi 5:50:20 - LMT 1928
|
||||
# Resolution of the Legislative Council passed on 9 May 1979
|
||||
# https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39
|
||||
|
||||
# From Paul Eggert (2019-05-31):
|
||||
# From Paul Eggert (2020-04-15):
|
||||
# Here are the dates given at
|
||||
# https://www.hko.gov.hk/gts/time/Summertime.htm
|
||||
# as of 2014-06-19:
|
||||
# https://www.hko.gov.hk/en/gts/time/Summertime.htm
|
||||
# as of 2020-02-10:
|
||||
# Year Period
|
||||
# 1941 15 Jun to 30 Sep
|
||||
# 1942 Whole year
|
||||
@ -1828,6 +1930,47 @@ Zone Asia/Jerusalem 2:20:54 - LMT 1880
|
||||
|
||||
# '9:00' and 'JST' is from Guy Harris.
|
||||
|
||||
# From Paul Eggert (2020-01-19):
|
||||
# Starting in the 7th century, Japan generally followed an ancient Chinese
|
||||
# timekeeping system that divided night and day into six hours each,
|
||||
# with hour length depending on season. In 1873 the government
|
||||
# started requiring the use of a Western style 24-hour clock. See:
|
||||
# Yulia Frumer, "Making Time: Astronomical Time Measurement in Tokugawa Japan"
|
||||
# <https://www.worldcat.org/oclc/1043907065>. As the tzdb code and
|
||||
# data support only 24-hour clocks, its tables model timestamps before
|
||||
# 1873 using Western-style local mean time.
|
||||
|
||||
# From Hideyuki Suzuki (1998-11-09):
|
||||
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
|
||||
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
|
||||
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
|
||||
# edited by National Astronomical Observatory of Japan....
|
||||
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
|
||||
# The law is enacted on 1886-07-07.
|
||||
|
||||
# From Hideyuki Suzuki (1998-11-16):
|
||||
# The ordinance No. 51 (1886) established "standard time" in Japan,
|
||||
# which stands for the time on 135° E.
|
||||
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
|
||||
# standard time". And the same ordinance also established "western standard
|
||||
# time", which stands for the time on 120° E.... But "western standard
|
||||
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
|
||||
# 167, there is no mention regarding for what place western standard time is
|
||||
# standard....
|
||||
#
|
||||
# I wrote "ordinance" above, but I don't know how to translate.
|
||||
# In Japanese it's "chokurei", which means ordinance from emperor.
|
||||
|
||||
# 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.
|
||||
# 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 (UT+9). The adoption began on Oct 1, 1937.
|
||||
# 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
|
||||
|
||||
# From Paul Eggert (1995-03-06):
|
||||
# Today's _Asahi Evening News_ (page 4) reports that Japan had
|
||||
# daylight saving between 1948 and 1951, but "the system was discontinued
|
||||
@ -1876,37 +2019,6 @@ Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
|
||||
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
|
||||
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
|
||||
|
||||
# From Hideyuki Suzuki (1998-11-09):
|
||||
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
|
||||
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
|
||||
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
|
||||
# edited by National Astronomical Observatory of Japan....
|
||||
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
|
||||
# The law is enacted on 1886-07-07.
|
||||
|
||||
# From Hideyuki Suzuki (1998-11-16):
|
||||
# The ordinance No. 51 (1886) established "standard time" in Japan,
|
||||
# which stands for the time on 135° E.
|
||||
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
|
||||
# standard time". And the same ordinance also established "western standard
|
||||
# time", which stands for the time on 120° E.... But "western standard
|
||||
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
|
||||
# 167, there is no mention regarding for what place western standard time is
|
||||
# standard....
|
||||
#
|
||||
# I wrote "ordinance" above, but I don't know how to translate.
|
||||
# In Japanese it's "chokurei", which means ordinance from emperor.
|
||||
|
||||
# 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.
|
||||
# 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 (UT+9). The adoption began on Oct 1, 1937.
|
||||
# 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 STDOFF RULES FORMAT [UNTIL]
|
||||
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
|
||||
9:00 Japan J%sT
|
||||
@ -3086,22 +3198,9 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
|
||||
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
|
||||
# states that summer time will end on Oct 29th at 01:00.
|
||||
#
|
||||
# From Tim Parenti (2016-10-19):
|
||||
# Predict fall transitions on October's last Saturday at 01:00 from now on.
|
||||
# This is consistent with the 2016 transition as well as our spring
|
||||
# predictions.
|
||||
#
|
||||
# From Paul Eggert (2016-10-19):
|
||||
# It's also consistent with predictions in the following URLs today:
|
||||
# https://www.timeanddate.com/time/change/gaza-strip/gaza
|
||||
# https://www.timeanddate.com/time/change/west-bank/hebron
|
||||
|
||||
# From Sharef Mustafa (2018-03-16):
|
||||
# Palestine summer time will start on Mar 24th 2018 by advancing the
|
||||
# clock by 60 minutes as per Palestinian cabinet decision published on
|
||||
# the official website, though the decree did not specify the exact
|
||||
# time of the time shift.
|
||||
# Palestine summer time will start on Mar 24th 2018 ...
|
||||
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
|
||||
|
||||
# From Even Scharning (2019-03-23):
|
||||
@ -3111,15 +3210,20 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
|
||||
# From Sharif Mustafa (2019-03-26):
|
||||
# The Palestinian cabinet announced today that the switch to DST will
|
||||
# be on Fri Mar 29th 2019 by advancing the clock by 60 minutes.
|
||||
# The decree signing date is Mar 12th but it was not published till today.
|
||||
# The decree does not specify the exact time of switch.
|
||||
# http://palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e54e9ea1-50ee-4137-84df-0d6c78da259b
|
||||
#
|
||||
# From Even Scharning (2019-04-10):
|
||||
# Our source in Palestine said it happened Friday 29 at 00:00 local time....
|
||||
|
||||
# From Sharef Mustafa (2019-10-18):
|
||||
# Palestine summer time will end on midnight Oct 26th 2019 ...
|
||||
# http://www.palestinecabinet.gov.ps/website/ar/ViewDetails?ID=43948
|
||||
#
|
||||
# From Paul Eggert (2019-04-10):
|
||||
# For now, guess spring-ahead transitions are March's last Friday at 00:00.
|
||||
#
|
||||
# From Tim Parenti (2016-10-19):
|
||||
# Predict fall transitions on October's last Saturday at 01:00 from now on.
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
|
||||
|
||||
1
backward
1
backward
@ -17,6 +17,7 @@ Link America/Atikokan America/Coral_Harbour
|
||||
Link America/Argentina/Cordoba America/Cordoba
|
||||
Link America/Tijuana America/Ensenada
|
||||
Link America/Indiana/Indianapolis America/Fort_Wayne
|
||||
Link America/Nuuk America/Godthab
|
||||
Link America/Indiana/Indianapolis America/Indianapolis
|
||||
Link America/Argentina/Jujuy America/Jujuy
|
||||
Link America/Indiana/Knox America/Knox_IN
|
||||
|
||||
29
backzone
29
backzone
@ -33,6 +33,35 @@
|
||||
# assumes rules from other files. In the tz distribution, use
|
||||
# 'make PACKRATDATA=backzone zones' to compile and install this file.
|
||||
|
||||
|
||||
# From Paul Eggert (2020-04-15):
|
||||
# The following remarks should be incorporated into this table sometime.
|
||||
# Patches in 'git format-patch' format would be welcome.
|
||||
#
|
||||
# From Phake Nick (2020-04-15):
|
||||
# ... the historical timezone data for those China zones seems to be
|
||||
# incorrect. The transition to GMT+8 date given there for these zones
|
||||
# were 1980 which also contradict the file description that they do
|
||||
# not disagree with normal zone after 1970. According to sources that
|
||||
# have also been cited in the asia file, except Xinjiang and Tibet,
|
||||
# they should have adopted the Beijing Time from around 1949/1950
|
||||
# depends on exactly when each of those cities were taken over by the
|
||||
# communist army. And they should also follow the DST setting of
|
||||
# Asia/Shanghai after that point of time. In addition,
|
||||
# http://gaz.ncl.edu.tw/detail.jsp?sysid=E1091792 the document from
|
||||
# Chongqing Nationalist government say in year 1945 all of China
|
||||
# should adopt summer time due to the war (not sure whether it
|
||||
# continued after WWII ends)(Probably only enforced in area under
|
||||
# their rule at the time?) The Asia/Harbin's 1932 and 1940 entry
|
||||
# should also be incorrect. As per sources recorded at
|
||||
# https://wiki.suikawiki.org/n/%E6%BA%80%E5%B7%9E%E5%9B%BD%E3%81%AE%E6%A8%99%E6%BA%96%E6%99%82
|
||||
# , in 1932 Harbin should have adopted UTC+8:00 instead of data
|
||||
# currently listed in the tz database according to official
|
||||
# announcement from Manchuko. And they should have adopted GMT+9 in
|
||||
# 1937 January 1st according to official announcement at the time
|
||||
# being cited on the webpage.
|
||||
|
||||
|
||||
# Zones are sorted by zone name. Each zone is preceded by the
|
||||
# name of the country that the zone is in, along with any other
|
||||
# commentary and rules associated with the entry.
|
||||
|
||||
16
europe
16
europe
@ -549,12 +549,13 @@ Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2
|
||||
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
|
||||
# The next line is for when negative SAVE values are used.
|
||||
# Vanguard section, for zic and other parsers that support negative DST.
|
||||
1:00 Eire IST/GMT
|
||||
# These three lines are for when SAVE values are always nonnegative.
|
||||
# Rearguard section, for parsers lacking negative DST; see ziguard.awk.
|
||||
# 1:00 - IST 1971 Oct 31 2:00u
|
||||
# 0:00 GB-Eire GMT/IST 1996
|
||||
# 0:00 EU GMT/IST
|
||||
# End of rearguard section.
|
||||
|
||||
|
||||
###############################################################################
|
||||
@ -1018,7 +1019,7 @@ Zone Europe/Prague 0:57:44 - LMT 1850
|
||||
1:00 Czech CE%sT 1946 Dec 1 3:00
|
||||
# Vanguard section, for zic and other parsers that support negative DST.
|
||||
1:00 -1:00 GMT 1947 Feb 23 2:00
|
||||
# Rearguard section, for parsers that do not support negative DST.
|
||||
# Rearguard section, for parsers lacking negative DST; see ziguard.awk.
|
||||
# 0:00 - GMT 1947 Feb 23 2:00
|
||||
# End of rearguard section.
|
||||
1:00 Czech CE%sT 1979
|
||||
@ -1175,14 +1176,17 @@ Zone America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28
|
||||
-3:00 - -03 1980 Apr 6 2:00
|
||||
-3:00 EU -03/-02 1996
|
||||
0:00 - GMT
|
||||
#
|
||||
# Use the old name Scoresbysund, as the current name Ittoqqortoormiit
|
||||
# exceeds tzdb's 14-letter limit and has no common English abbreviation.
|
||||
Zone America/Scoresbysund -1:27:52 - LMT 1916 Jul 28 # Ittoqqortoormiit
|
||||
-2:00 - -02 1980 Apr 6 2:00
|
||||
-2:00 C-Eur -02/-01 1981 Mar 29
|
||||
-1:00 EU -01/+00
|
||||
Zone America/Godthab -3:26:56 - LMT 1916 Jul 28 # Nuuk
|
||||
Zone America/Nuuk -3:26:56 - LMT 1916 Jul 28 # Godthåb
|
||||
-3:00 - -03 1980 Apr 6 2:00
|
||||
-3:00 EU -03/-02
|
||||
Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base
|
||||
Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik
|
||||
-4:00 Thule A%sT
|
||||
|
||||
# Estonia
|
||||
@ -1552,7 +1556,7 @@ Zone Europe/Budapest 1:16:20 - LMT 1890 Oct
|
||||
#
|
||||
# From January 1st, 1908 the whole of Iceland was standardised at 1 hour
|
||||
# behind GMT. Previously, local mean solar time was used in different parts
|
||||
# of Iceland, the almanak had been based on Reykjavik mean solar time which
|
||||
# of Iceland, the almanak had been based on Reykjavík mean solar time which
|
||||
# was 1 hour and 28 minutes behind GMT.
|
||||
#
|
||||
# "first day of winter" referred to [below] means the first day of the 26 weeks
|
||||
|
||||
@ -62,7 +62,7 @@
|
||||
# Terry Quinn, "The BIPM and the Accurate Measurement
|
||||
# of Time," Proc. of the IEEE, Vol. 79, pp. 894-905,
|
||||
# July, 1991. <http://dx.doi.org/10.1109/5.84965>
|
||||
# reprinted in:
|
||||
# reprinted in:
|
||||
# Christine Hackman and Donald B Sullivan (eds.)
|
||||
# Time and Frequency Measurement
|
||||
# American Association of Physics Teachers (1996)
|
||||
@ -204,10 +204,10 @@
|
||||
# current -- the update time stamp, the data and the name of the file
|
||||
# will not change.
|
||||
#
|
||||
# Updated through IERS Bulletin C58
|
||||
# File expires on: 28 June 2020
|
||||
# Updated through IERS Bulletin C59
|
||||
# File expires on: 28 December 2020
|
||||
#
|
||||
#@ 3802291200
|
||||
#@ 3818102400
|
||||
#
|
||||
2272060800 10 # 1 Jan 1972
|
||||
2287785600 11 # 1 Jul 1972
|
||||
@ -252,4 +252,4 @@
|
||||
# the hash line is also ignored in the
|
||||
# computation.
|
||||
#
|
||||
#h f28827d2 f263b6c3 ec0f19eb a3e0dbf0 97f3fa30
|
||||
#h a1c168ae 27c79a7d 9dddcfc3 bcfe616b 2e2c44ea
|
||||
|
||||
12
leapseconds
12
leapseconds
@ -64,9 +64,15 @@ Leap 2012 Jun 30 23:59:60 + S
|
||||
Leap 2015 Jun 30 23:59:60 + S
|
||||
Leap 2016 Dec 31 23:59:60 + S
|
||||
|
||||
# UTC timestamp when this leap second list expires.
|
||||
# Any additional leap seconds will come after this.
|
||||
# This Expires line is commented out for now,
|
||||
# so that pre-2020a zic implementations do not reject this file.
|
||||
#Expires 2020 Dec 28 00:00:00
|
||||
|
||||
# POSIX timestamps for the data in this file:
|
||||
#updated 1467936000 (2016-07-08 00:00:00 UTC)
|
||||
#expires 1593302400 (2020-06-28 00:00:00 UTC)
|
||||
#expires 1609113600 (2020-12-28 00:00:00 UTC)
|
||||
|
||||
# Updated through IERS Bulletin C58
|
||||
# File expires on: 28 June 2020
|
||||
# Updated through IERS Bulletin C59
|
||||
# File expires on: 28 December 2020
|
||||
|
||||
@ -68,12 +68,12 @@ BEGIN {
|
||||
monthabbr[11] = "Nov"
|
||||
monthabbr[12] = "Dec"
|
||||
|
||||
# Strip trailing CR, in case the input has CRLF form a la NIST.
|
||||
RS = "\r?\n"
|
||||
|
||||
sstamp_init()
|
||||
}
|
||||
|
||||
# In case the input has CRLF form a la NIST.
|
||||
{ sub(/\r$/, "") }
|
||||
|
||||
/^#[ \t]*[Uu]pdated through/ || /^#[ \t]*[Ff]ile expires on/ {
|
||||
last_lines = last_lines $0 "\n"
|
||||
}
|
||||
@ -100,6 +100,17 @@ BEGIN {
|
||||
}
|
||||
|
||||
END {
|
||||
sstamp_to_ymdhMs(expires, ss_NTP)
|
||||
|
||||
print ""
|
||||
print "# UTC timestamp when this leap second list expires."
|
||||
print "# Any additional leap seconds will come after this."
|
||||
print "# This Expires line is commented out for now,"
|
||||
print "# so that pre-2020a zic implementations do not reject this file."
|
||||
printf "%sExpires %.4d\t%s\t%.2d\t%.2d:%.2d:%.2d\n", \
|
||||
EXPIRES_LINE ? "" : "#", \
|
||||
ss_year, monthabbr[ss_month], ss_mday, ss_hour, ss_min, ss_sec
|
||||
|
||||
# The difference between the NTP and POSIX epochs is 70 years
|
||||
# (including 17 leap days), each 24 hours of 60 minutes of 60
|
||||
# seconds each.
|
||||
|
||||
48
northamerica
48
northamerica
@ -86,7 +86,7 @@
|
||||
# For more about the first ten years of DST in the United States, see
|
||||
# Robert Garland, Ten years of daylight saving from the Pittsburgh standpoint
|
||||
# (Carnegie Library of Pittsburgh, 1927).
|
||||
# http://www.clpgh.org/exhibit/dst.html
|
||||
# https://web.archive.org/web/20160517155308/http://www.clpgh.org/exhibit/dst.html
|
||||
#
|
||||
# Shanks says that DST was called "War Time" in the US in 1918 and 1919.
|
||||
# However, DST was imposed by the Standard Time Act of 1918, which
|
||||
@ -1470,7 +1470,8 @@ Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay
|
||||
-4:00 Canada A%sT
|
||||
|
||||
|
||||
# west Labrador, Nova Scotia, Prince Edward I
|
||||
# west Labrador, Nova Scotia, Prince Edward I,
|
||||
# Îles-de-la-Madeleine, Listuguj reserve
|
||||
|
||||
# From Brian Inglis (2015-07-20):
|
||||
# From the historical weather station records available at:
|
||||
@ -1489,6 +1490,13 @@ Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay
|
||||
# in Canada to observe DST in 1971 but not 1970; for now we'll assume
|
||||
# this is a typo.
|
||||
|
||||
# From Jeffery Nichols (2020-01-09):
|
||||
# America/Halifax ... also applies to Îles-de-la-Madeleine and the Listuguj
|
||||
# reserve in Quebec. Officially, this came into effect on January 1, 2007
|
||||
# (Legal Time Act, CQLR c T-5.1), but the legislative debates surrounding that
|
||||
# bill say that it is "accommodating the customs and practices" of those
|
||||
# regions, which suggests that they have always been in-line with Halifax.
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule Halifax 1916 only - Apr 1 0:00 1:00 D
|
||||
Rule Halifax 1916 only - Oct 1 0:00 0 S
|
||||
@ -1582,19 +1590,20 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9
|
||||
|
||||
# Quebec
|
||||
|
||||
# From Paul Eggert (2015-03-24):
|
||||
# From Paul Eggert (2020-01-10):
|
||||
# See America/Toronto for most of Quebec, including Montreal.
|
||||
# See America/Halifax for the Îles de la Madeleine and the Listuguj reserve.
|
||||
#
|
||||
# Matthews and Vincent (1998) also write that Quebec east of the -63
|
||||
# meridian is supposed to observe AST, but residents as far east as
|
||||
# Natashquan use EST/EDT, and residents east of Natashquan use AST.
|
||||
# The Quebec department of justice writes in
|
||||
# "The situation in Minganie and Basse-Côte-Nord"
|
||||
# http://www.justice.gouv.qc.ca/english/publications/generale/temps-minganie-a.htm
|
||||
# https://www.justice.gouv.qc.ca/en/department/ministre/functions-and-responsabilities/legal-time-in-quebec/the-situation-in-minganie-and-basse-cote-nord/
|
||||
# that the coastal strip from just east of Natashquan to Blanc-Sablon
|
||||
# observes Atlantic standard time all year round.
|
||||
# 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.
|
||||
# This common practice was codified into law as of 2007; see Legal Time Act,
|
||||
# CQLR c T-5.1 <http://legisquebec.gouv.qc.ca/en/ShowDoc/cs/T-5.1>.
|
||||
# For lack of better info, guess this practice began around 1970, contra to
|
||||
# Shanks & Pottenger who have this region observing AST/ADT.
|
||||
|
||||
@ -1613,6 +1622,15 @@ Zone America/Blanc-Sablon -3:48:28 - LMT 1884
|
||||
# Nipigon (EST) and Rainy River (CST) are the largest that we know of.
|
||||
# Far west Ontario is like Winnipeg; far east Quebec is like Halifax.
|
||||
|
||||
# From Jeffery Nichols (2020-02-06):
|
||||
# According to the [Shanks] atlas, those western Ontario zones are huge,
|
||||
# covering most of Ontario northwest of Sault Ste Marie and Timmins.
|
||||
# The zones seem to include towns bigger than the ones they're named after,
|
||||
# like Dryden in America/Rainy_River and Wawa (and maybe Attawapiskat) in
|
||||
# America/Nipigon. I assume it's too much trouble to change the name of the
|
||||
# zone (like when you found out that America/Glace_Bay includes Sydney, Nova
|
||||
# Scotia)....
|
||||
|
||||
# From Mark Brader (2003-07-26):
|
||||
# [According to the Toronto Star] Orillia, Ontario, adopted DST
|
||||
# effective Saturday, 1912-06-22, 22:00; the article mentions that
|
||||
@ -2419,6 +2437,18 @@ Zone America/Creston -7:46:04 - LMT 1884
|
||||
# obtained in November 2008 should be ignored...
|
||||
# I apologize for reporting incorrect information in 2008.
|
||||
|
||||
# From Tim Parenti (2020-03-05):
|
||||
# The government of Yukon announced [yesterday] the cessation of seasonal time
|
||||
# changes. "After clocks are pushed ahead one hour on March 8, the territory
|
||||
# will remain on [UTC-07]. ... [The government] found 93 per cent of
|
||||
# respondents wanted to end seasonal time changes and, of that group, 70 per
|
||||
# cent wanted 'permanent Pacific Daylight Saving Time.'"
|
||||
# https://www.cbc.ca/news/canada/north/yukon-end-daylight-saving-time-1.5486358
|
||||
#
|
||||
# Although the government press release prefers PDT, we prefer MST for
|
||||
# consistency with nearby Dawson Creek, Creston, and Fort Nelson.
|
||||
# https://yukon.ca/en/news/yukon-end-seasonal-time-change
|
||||
|
||||
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
|
||||
Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
|
||||
Rule NT_YK 1918 only - Oct 27 2:00 0 S
|
||||
@ -2473,11 +2503,13 @@ Zone America/Inuvik 0 - -00 1953 # Inuvik founded
|
||||
Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20
|
||||
-9:00 NT_YK Y%sT 1967 May 28 0:00
|
||||
-8:00 NT_YK P%sT 1980
|
||||
-8:00 Canada P%sT
|
||||
-8:00 Canada P%sT 2020 Mar 8 2:00
|
||||
-7:00 - MST
|
||||
Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
|
||||
-9:00 NT_YK Y%sT 1973 Oct 28 0:00
|
||||
-8:00 NT_YK P%sT 1980
|
||||
-8:00 Canada P%sT
|
||||
-8:00 Canada P%sT 2020 Mar 8 2:00
|
||||
-7:00 - MST
|
||||
|
||||
|
||||
###############################################################################
|
||||
|
||||
23
theory.html
23
theory.html
@ -298,6 +298,10 @@ in decreasing order of importance:
|
||||
If a name is changed, put its old spelling in the
|
||||
'<code>backward</code>' file.
|
||||
This means old spellings will continue to work.
|
||||
Ordinarily a name change should occur only in the rare case when
|
||||
a location's consensus English-language spelling changes; for example,
|
||||
in 2008 <code>Asia/Calcutta</code> was renamed to <code>Asia/Kolkata</code>
|
||||
due to long-time widespread use of the new city name instead of the old.
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
@ -1053,23 +1057,6 @@ an older <code>zic</code>.
|
||||
extra <code>timezone_t</code> argument.
|
||||
The functions were inspired by <a href="https://netbsd.org/">NetBSD</a>.
|
||||
</li>
|
||||
<li>
|
||||
A function <code>tzsetwall</code> has been added to arrange for the
|
||||
system's best approximation to local (wall clock) time to be delivered
|
||||
by subsequent calls to <code>localtime</code>.
|
||||
Source code for portable applications that "must" run on local
|
||||
time should call <code>tzsetwall</code>;
|
||||
if such code is moved to "old" systems that do not
|
||||
provide <code>tzsetwall</code>, you will not be able to generate an
|
||||
executable program.
|
||||
(These functions also arrange for local time to
|
||||
be used if <code>tzset</code> is called – directly or
|
||||
indirectly – and there is no <code>TZ</code> environment
|
||||
variable; portable applications should not, however, rely on this
|
||||
behavior since it is not the way <a
|
||||
href="https://en.wikipedia.org/wiki/UNIX_System_V#SVR2"><abbr>SVR2</abbr></a>
|
||||
systems behave.)
|
||||
</li>
|
||||
<li>
|
||||
Negative <code>time_t</code> values are supported, on systems
|
||||
where <code>time_t</code> is signed.
|
||||
@ -1137,7 +1124,7 @@ The vestigial <abbr>API</abbr>s are:
|
||||
may now examine <code>localtime(&clock)->tm_zone</code>
|
||||
(if <code>TM_ZONE</code> is defined) or
|
||||
<code>tzname[localtime(&clock)->tm_isdst]</code>
|
||||
(if <code>HAVE_TZNAME</code> is defined) to learn the correct time
|
||||
(if <code>HAVE_TZNAME</code> is nonzero) to learn the correct time
|
||||
zone abbreviation to use.
|
||||
</li>
|
||||
<li>
|
||||
|
||||
12
zone.tab
12
zone.tab
@ -131,8 +131,8 @@ CA +4906-11631 America/Creston MST - BC (Creston)
|
||||
CA +5946-12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John)
|
||||
CA +5848-12242 America/Fort_Nelson MST - BC (Ft Nelson)
|
||||
CA +4916-12307 America/Vancouver Pacific - BC (most areas)
|
||||
CA +6043-13503 America/Whitehorse Pacific - Yukon (south)
|
||||
CA +6404-13925 America/Dawson Pacific - Yukon (north)
|
||||
CA +6043-13503 America/Whitehorse Pacific - Yukon (east)
|
||||
CA +6404-13925 America/Dawson Pacific - Yukon (west)
|
||||
CC -1210+09655 Indian/Cocos
|
||||
CD -0418+01518 Africa/Kinshasa Dem. Rep. of Congo (west)
|
||||
CD -1140+02728 Africa/Lubumbashi Dem. Rep. of Congo (east)
|
||||
@ -189,7 +189,7 @@ GF +0456-05220 America/Cayenne
|
||||
GG +492717-0023210 Europe/Guernsey
|
||||
GH +0533-00013 Africa/Accra
|
||||
GI +3608-00521 Europe/Gibraltar
|
||||
GL +6411-05144 America/Godthab Greenland (most areas)
|
||||
GL +6411-05144 America/Nuuk Greenland (most areas)
|
||||
GL +7646-01840 America/Danmarkshavn National Park (east coast)
|
||||
GL +7029-02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit
|
||||
GL +7634-06847 America/Thule Thule/Pituffik
|
||||
@ -335,7 +335,7 @@ RU +554521+0373704 Europe/Moscow MSK+00 - Moscow area
|
||||
# The obsolescent zone.tab format cannot represent Europe/Simferopol well.
|
||||
# Put it in RU section and list as UA. See "territorial claims" above.
|
||||
# Programs should use zone1970.tab instead; see above.
|
||||
UA +4457+03406 Europe/Simferopol MSK+00 - Crimea
|
||||
UA +4457+03406 Europe/Simferopol Crimea
|
||||
RU +5836+04939 Europe/Kirov MSK+00 - Kirov
|
||||
RU +4621+04803 Europe/Astrakhan MSK+01 - Astrakhan
|
||||
RU +4844+04425 Europe/Volgograd MSK+01 - Volgograd
|
||||
@ -399,8 +399,8 @@ TV -0831+17913 Pacific/Funafuti
|
||||
TW +2503+12130 Asia/Taipei
|
||||
TZ -0648+03917 Africa/Dar_es_Salaam
|
||||
UA +5026+03031 Europe/Kiev Ukraine (most areas)
|
||||
UA +4837+02218 Europe/Uzhgorod Ruthenia
|
||||
UA +4750+03510 Europe/Zaporozhye Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east)
|
||||
UA +4837+02218 Europe/Uzhgorod Transcarpathia
|
||||
UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk
|
||||
UG +0019+03225 Africa/Kampala
|
||||
UM +2813-17722 Pacific/Midway Midway Islands
|
||||
UM +1917+16637 Pacific/Wake Wake Island
|
||||
|
||||
12
zone1970.tab
12
zone1970.tab
@ -128,8 +128,8 @@ CA +4906-11631 America/Creston MST - BC (Creston)
|
||||
CA +5946-12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John)
|
||||
CA +5848-12242 America/Fort_Nelson MST - BC (Ft Nelson)
|
||||
CA +4916-12307 America/Vancouver Pacific - BC (most areas)
|
||||
CA +6043-13503 America/Whitehorse Pacific - Yukon (south)
|
||||
CA +6404-13925 America/Dawson Pacific - Yukon (north)
|
||||
CA +6043-13503 America/Whitehorse Pacific - Yukon (east)
|
||||
CA +6404-13925 America/Dawson Pacific - Yukon (west)
|
||||
CC -1210+09655 Indian/Cocos
|
||||
CH,DE,LI +4723+00832 Europe/Zurich Swiss time
|
||||
CI,BF,GM,GN,ML,MR,SH,SL,SN,TG +0519-00402 Africa/Abidjan
|
||||
@ -173,7 +173,7 @@ GE +4143+04449 Asia/Tbilisi
|
||||
GF +0456-05220 America/Cayenne
|
||||
GH +0533-00013 Africa/Accra
|
||||
GI +3608-00521 Europe/Gibraltar
|
||||
GL +6411-05144 America/Godthab Greenland (most areas)
|
||||
GL +6411-05144 America/Nuuk Greenland (most areas)
|
||||
GL +7646-01840 America/Danmarkshavn National Park (east coast)
|
||||
GL +7029-02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit
|
||||
GL +7634-06847 America/Thule Thule/Pituffik
|
||||
@ -290,7 +290,7 @@ RS,BA,HR,ME,MK,SI +4450+02030 Europe/Belgrade
|
||||
RU +5443+02030 Europe/Kaliningrad MSK-01 - Kaliningrad
|
||||
RU +554521+0373704 Europe/Moscow MSK+00 - Moscow area
|
||||
# Mention RU and UA alphabetically. See "territorial claims" above.
|
||||
RU,UA +4457+03406 Europe/Simferopol MSK+00 - Crimea
|
||||
RU,UA +4457+03406 Europe/Simferopol Crimea
|
||||
RU +5836+04939 Europe/Kirov MSK+00 - Kirov
|
||||
RU +4621+04803 Europe/Astrakhan MSK+01 - Astrakhan
|
||||
RU +4844+04425 Europe/Volgograd MSK+01 - Volgograd
|
||||
@ -341,8 +341,8 @@ TT,AG,AI,BL,DM,GD,GP,KN,LC,MF,MS,VC,VG,VI +1039-06131 America/Port_of_Spain
|
||||
TV -0831+17913 Pacific/Funafuti
|
||||
TW +2503+12130 Asia/Taipei
|
||||
UA +5026+03031 Europe/Kiev Ukraine (most areas)
|
||||
UA +4837+02218 Europe/Uzhgorod Ruthenia
|
||||
UA +4750+03510 Europe/Zaporozhye Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east)
|
||||
UA +4837+02218 Europe/Uzhgorod Transcarpathia
|
||||
UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk
|
||||
UM +1917+16637 Pacific/Wake Wake Island
|
||||
US +404251-0740023 America/New_York Eastern (most areas)
|
||||
US +421953-0830245 America/Detroit Eastern - MI (most areas)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user