Flatting the vendor dist tree of tzdata.

Approved by:	bde (mentor, implicit), des

Makefile

@@ -0,0 +1,138 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/8/93
+
+# Change the line below for your time zone (after finding the zone you want in
+# the time zone files, or adding it to a time zone file).
+# Alternately, if you discover you've got the wrong time zone, you can just
+#	zic -l rightzone
+
+LOCALTIME=	US/Pacific
+
+# If you want something other than Eastern United States time as a template
+# for handling POSIX-style time zone environment variables,
+# change the line below (after finding the zone you want in the
+# time zone files, or adding it to a time zone file).
+# Alternately, if you discover you've got the wrong time zone, you can just
+#	zic -p rightzone
+
+POSIXRULES=	US/Pacific
+
+# Use an absolute path name for TZDIR unless you're just testing the software.
+
+TZDIR=	${DESTDIR}/usr/share/zoneinfo
+
+# If you always want time values interpreted as "seconds since the epoch
+# (not counting leap seconds)", use
+# 	REDO=		posix_only
+# below.  If you always want right time 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
+# counted normally, use
+#	REDO=		posix_right
+# below.  If you want both sets of data available, with leap seconds counted
+# normally, use
+#	REDO=		right_posix
+# below.
+
+REDO=		right_only
+
+# If you're running on a System V-style system and don't want lint grief,
+# add
+#	-DUSG
+# to the end of the "CFLAGS=" line.
+#
+# If you're running on a system where "strchr" is known as "index",
+# (for example, a 4.[012]BSD system), add
+#	-Dstrchr=index
+# to the end of the "CFLAGS=" line.
+#
+# If you're running on a system with a "mkdir" function, feel free to add
+#	-Demkdir=mkdir
+# to the end of the "CFLAGS=" line
+#
+# If you want to use System V compatibility code, add
+#	-DUSG_COMPAT
+# to the end of the "CFLAGS=" line.
+#
+# 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),
+# add the name to a define such as
+#	-DTM_GMTOFF=tm_gmtoff
+# or
+#	-DTM_GMTOFF=_tm_gmtoff
+# to the end of the "CFLAGS=" line.
+#
+# 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),
+# add the name to a define such as
+#	-DTM_ZONE=tm_zone
+# or
+#	-DTM_ZONE=_tm_zone
+# to the end of the "CFLAGS=" line.
+#
+# If you want code inspired by certain emerging standards, add
+#	-DSTD_INSPIRED
+# to the end of the "CFLAGS=" line.
+#
+# If you want Source Code Control System ID's left out of object modules, add
+#	-DNOID
+# to the end of the "CFLAGS=" line.
+#
+# If you'll never want to handle solar-time-based time zones, add
+#	-DNOSOLAR
+# to the end of the "CFLAGS=" line
+# (and comment out the "SDATA=" line below).
+#
+# If you want to allocate state structures in localtime, add
+#	-DALL_STATE
+# to the end of the "CFLAGS=" line.
+#
+# If you want an "altzone" variable (a la System V Release 3.1), add
+#	-DALTZONE
+# to the end of the "CFLAGS=" line.
+#
+# If you want a "gtime" function (a la MACH), add
+#	-DCMUCS
+# to the end of the "CFLAGS=" line
+
+.PATH:	${.CURDIR}/datfiles
+CFLAGS=	-DTM_GMTOFF=tm_gmtoff -DTM_ZONE=tm_zone
+PROG=	zic
+MAN5=	tzfile.0
+
+SRCS=	zic.c scheck.c ialloc.c
+
+YDATA=	africa antarctica asia australasia europe northamerica \
+	southamerica pacificnew etcetera factory
+NDATA=	systemv
+#SDATA=	solar87 solar88 solar89
+TDATA=	${YDATA} ${NDATA} ${SDATA}
+DATA=	${YDATA} ${NDATA} ${SDATA} leapseconds
+USNO=	usno1988 usno1989
+
+posix_only: ${TDATA}
+	(cd ${.CURDIR}/datfiles; \
+	    ../obj/zic -d ${TZDIR} -L /dev/null ${TDATA})
+
+right_only: leapseconds ${TDATA}
+	(cd ${.CURDIR}/datfiles; \
+	    ../obj/zic -d ${TZDIR} -L leapseconds ${TDATA})
+
+other_two: leapseconds ${TDATA}
+	(cd ${.CURDIR}/datfiles; \
+	    ../obj/zic -d ${TZDIR}/posix -L /dev/null ${TDATA})
+	(cd ${.CURDIR}/datfiles; \
+	    ../obj/zic -d ${TZDIR}/right -L leapseconds ${TDATA})
+
+posix_right: posix_only other_two
+
+right_posix: right_only other_two
+
+install: maninstall ${DATA} ${REDO}
+	(cd ${.CURDIR}/datfiles && ../obj/zic -d ${TZDIR} -p ${POSIXRULES})
+	install -c -o ${BINOWN} -g ${BINGRP} -m 444 \
+	    ${TZDIR}/${LOCALTIME} ${DESTDIR}/etc/localtime
+	chown -R ${BINOWN}.${BINGRP} ${TZDIR}
+	chmod -R a-w ${TZDIR}
+
+.include <bsd.prog.mk>

datfiles/asia

@@ -0,0 +1,262 @@
+# @(#)asia	7.1
+
+# From Guy Harris:
+# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
+# additional information from Tom Yap, Sun Microsystems Intercontinental
+# Technical Support (including a page from the Official Airline Guide -
+# Worldwide Edition).  The names for time zones are guesses.
+
+###############################################################################
+
+# People's Republic of China
+
+# From Guy Harris:
+# People's Republic of China.  Yes, they really have only one time zone.
+
+# From Bob Devine (January 28, 1988):
+# No they don't.  See TIME mag, February 17, 1986 p.52.  Even though
+# China is across 4 physical time zones, before Feb 1, 1986 only the
+# Peking (Bejing) time zone was recognized.  Since that date, China
+# has two of 'em -- Peking's and Urumqi (named after the capital of
+# the Xinjiang Uighur Autonomous Region).  I don't know about DST for it.
+#
+# . . .I just deleted the DST table and this editor makes it too
+# painful to suck in another copy..  So, here is what I have for
+# DST start/end dates for Peking's time zone (info from AP):
+#
+#     1986 May 4 - Sept 14
+#     1987 mid-April - ??
+
+# From U. S. Naval Observatory (January 19, 1989):
+# CHINA               8 H  AHEAD OF UTC  ALL OF CHINA, INCL TAIWAN
+# CHINA               9 H  AHEAD OF UTC  APR 17 - SEP 10
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	PRC	1970	max	-	Apr	Sun<=14	2:00	1:00	D
+Rule	PRC	1970	max	-	Sep	Sun<=14	3:00	0	S
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	PRC		8:00	PRC		C%sT
+
+###############################################################################
+
+# Republic of China
+
+# From Guy Harris
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	ROC		8:00	-		CST
+
+###############################################################################
+
+# Hongkong
+
+# From Guy Harris
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	Hongkong	8:00	-		HKT
+
+###############################################################################
+
+# Iran
+
+# From Bob Devine (January 28, 1988):
+# Iran: Last Sunday in March to third (?) Sunday in
+# September.  Since the revolution, the official calendar is Monarchic
+# calendar; I have no idea what the correspondence between dates are.
+
+# From U. S. Naval Observatory (January 19, 1989):
+# IRAN                3.5H AHEAD OF UTC
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Iran	1988	max	-	Mar	lastSun	2:00	1:00	D
+Rule	Iran	1988	max	-	Sep	Sun>=15	2:00	0	S
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	Iran		3:30	Iran		I%sT
+
+###############################################################################
+
+# Israel
+
+# From U. S. Naval Observatory (January 19, 1989):
+# ISRAEL              2 H  AHEAD OF UTC
+# ISRAEL              3 H  AHEAD OF UTC  APR 10 - SEP 3
+
+# From Ephraim Silverberg (April 18, 1989):
+
+# Prior to 1989, the rules concerning Daylight Savings Time changed every
+# year; as information, regarding exact times and dates during this period,
+# is not readily available at the present time, the rules commence starting
+# with the year 1989.
+
+# From 1989 onwards the rules are as follows:
+#
+# 1. Daylight Savings Time commences midnight of the first Saturday night
+#    following the seven-day festival of Pesach (Passover).  The transition
+#    is from midnight Israel Standard Time to 1 a.m. Israel Daylight Savings
+#    time.  As the Pesach festival is dependent on the Lunar calendar (the
+#    first day is always on the 15th day of the month of Nisan), the rule
+#    changes every year on the Gregorian calendar.
+#
+# 2. Standard Time is reinstated on the Saturday night whereupon Jews
+#    following the Ashkenazi (European) rite begin to recite the Selichot
+#    (forgiveness) prayers prior to the Jewish Lunar New Year.  The transition
+#    is from midnight Israel Daylight Savings time to 11 p.m. Israel Standard
+#    Time.  The law (according to the Ashkenazi custom) concerning the
+#    commencement of the Selichot prayers is described in chapter 128, section
+#    5 of the "Code of Jewish Law," by Rabbi Shlomo Ganzfried (translated by
+#    Hyman E. Goldin):
+#
+#       Beginning with the Sunday [**] before Rosh Hashanah [***],
+#       we rise early for the service of Selichot (supplications for
+#       forgiveness).  If Rosh Hashanah occurs on Monday or Tuesday, we
+#       begin saying the Selichot from the Sunday of the preceding week.
+#
+#    This, too, varies from year to year on the Gregorian calendar and, thus,
+#    two explicit timezone rules are required for each Gregorian year.
+#
+#    [**] actually Saturday night as the Jewish day commences at nightfall.
+#    [***] the Jewish Lunar New Year.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Zion	1989	only	-	Apr	30	0:00	1:00	D
+Rule	Zion	1989	only	-	Sep	24	0:00	0:00	S
+Rule	Zion	1990	only	-	Apr	22	0:00	1:00	D
+Rule	Zion	1990	only	-	Sep	16	0:00	0:00	S
+Rule	Zion	1991	only	-	Apr	 7	0:00	1:00	D
+Rule	Zion	1991	only	-	Sep	 1	0:00	0:00	S
+Rule	Zion	1992	only	-	Apr	26	0:00	1:00	D
+Rule	Zion	1992	only	-	Sep	20	0:00	0:00	S
+Rule	Zion	1993	only	-	Apr	18	0:00	1:00	D
+Rule	Zion	1993	only	-	Sep	12	0:00	0:00	S
+Rule	Zion	1994	only	-	Apr	 3	0:00	1:00	D
+Rule	Zion	1994	only	-	Aug	28	0:00	0:00	S
+Rule	Zion	1995	only	-	Apr	23	0:00	1:00	D
+Rule	Zion	1995	only	-	Sep	17	0:00	0:00	S
+Rule	Zion	1996	only	-	Apr	14	0:00	1:00	D
+Rule	Zion	1996	only	-	Sep	 8	0:00	0:00	S
+Rule	Zion	1997	only	-	May	 4	0:00	1:00	D
+Rule	Zion	1997	only	-	Sep	28	0:00	0:00	S
+Rule	Zion	1998	only	-	Apr	19	0:00	1:00	D
+Rule	Zion	1998	only	-	Sep	13	0:00	0:00	S
+Rule	Zion	1999	only	-	Apr	11	0:00	1:00	D
+Rule	Zion	1999	only	-	Sep	 5	0:00	0:00	S
+Rule	Zion	2000	only	-	Apr	30	0:00	1:00	D
+Rule	Zion	2000	only	-	Sep	24	0:00	0:00	S
+Rule	Zion	2001	only	-	Apr	15	0:00	1:00	D
+Rule	Zion	2001	only	-	Sep	 9	0:00	0:00	S
+Rule	Zion	2002	only	-	Apr	 7	0:00	1:00	D
+Rule	Zion	2002	only	-	Sep	 1	0:00	0:00	S
+Rule	Zion	2003	only	-	Apr	27	0:00	1:00	D
+Rule	Zion	2003	only	-	Sep	21	0:00	0:00	S
+Rule	Zion	2004	only	-	Apr	18	0:00	1:00	D
+Rule	Zion	2004	only	-	Sep	12	0:00	0:00	S
+Rule	Zion	2005	only	-	May	 1	0:00	1:00	D
+Rule	Zion	2005	only	-	Sep	25	0:00	0:00	S
+Rule	Zion	2006	only	-	Apr	23	0:00	1:00	D
+Rule	Zion	2006	only	-	Sep	17	0:00	0:00	S
+Rule	Zion	2007	only	-	Apr	15	0:00	1:00	D
+Rule	Zion	2007	only	-	Sep	 9	0:00	0:00	S
+Rule	Zion	2008	only	-	Apr	27	0:00	1:00	D
+Rule	Zion	2008	only	-	Sep	21	0:00	0:00	S
+Rule	Zion	2009	only	-	Apr	19	0:00	1:00	D
+Rule	Zion	2009	only	-	Sep	13	0:00	0:00	S
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	Israel		2:00	Zion		I%sT
+
+# The following is a chart of the day of the week and Gregorian date of
+# the first day of Pesach and the first day of Rosh Hashanah for the years
+# 1989 through 2009 inclusive.
+#
+# First Day of Passover
+# ---------------------
+# Gregorian Year	Day of Week	Month		Day
+# --------------	-----------	-----		---
+#	1989		Thursday	April		20
+#	1990		Tuesday		April		10
+#	1991		Saturday	March		30
+#	1992		Saturday	April		18
+#	1993		Tuesday		April		 6
+#	1994		Sunday		March		27
+#	1995		Saturday	April		15
+#	1996		Thursday	April		 4
+#	1997		Tuesday		April		22
+#	1998		Saturday	April		11
+#	1999		Thursday	April		 1
+#	2000		Thursday	April		20
+#	2001		Sunday		April		 8
+#	2002		Thursday	March		28
+#	2003		Thursday	April		17
+#	2004		Tuesday		April		 6
+#	2005		Sunday		April		24
+#	2006		Thursday	April		13
+#	2007		Tuesday		April		 3
+#	2008		Sunday		April		20
+#	2009		Thursday	April		 9
+#
+# First Day of Rosh Hashanah
+# --------------------------
+# Gregorian Year	Day of Week	Month		Day
+# --------------	-----------	-----		---
+#	1989		Saturday	September	30
+#	1990		Thursday	September	20
+#	1991		Monday		September	 9
+#	1992		Monday		September	28
+#	1993		Thursday	September	16
+#	1994		Tuesday		September	 6
+#	1995		Monday		September	25
+#	1996		Saturday	September	14
+#	1997		Thursday	October		 2
+#	1998		Monday		September	21
+#	1999		Saturday	September	11
+#	2000		Saturday	September	30
+#	2001		Tuesday		September	18
+#	2002		Saturday	September	 7
+#	2003		Saturday	September	27
+#	2004		Thursday	September	16
+#	2005		Tuesday		October		 4
+#	2006		Saturday	September	23
+#	2007		Thursday	September	13
+#	2008		Tuesday		September	30
+#	2009		Saturday	September	19
+
+###############################################################################
+
+# Japan
+
+# From Guy Harris
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	Japan		9:00	-		JST
+
+###############################################################################
+
+# Republic of Korea
+
+# From Guy Harris:
+# According to someone at the Korean Times in San Francisco,
+# Daylight Savings Time was not observed until 1987.  He did not know
+# at what time of day DST starts or ends.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	ROK	1987	max	-	May	Sun<=14	2:00	1:00	D
+Rule	ROK	1987	max	-	Oct	Sun<=14	3:00	0	S
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	ROK		9:00	ROK		K%sT
+
+###############################################################################
+
+# Lebanon
+
+# From Bob Devine (January 28, 1988):
+# Lebanon: They do have DST but I don't know the dates.
+
+###############################################################################
+
+# Singapore
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	Singapore	8:00	-		SST

datfiles/europe

@@ -0,0 +1,224 @@
+# @(#)europe	4.10
+
+# International country codes are used to identify countries' rules and
+# zones
+#
+# This data is by no means authoritative; if you think you know better, go
+# ahead and edit the file (and please send any changes to
+# ado@ncifcrf.gov for general use in the future).
+
+###############################################################################
+
+# United Kingdom
+
+# From Arthur David Olson (January 19, 1989):
+#
+# The starting and ending dates below (from which the rules are derived)
+# are from Whitaker's Almanack for 1987, page 146.
+# 1960 is the earliest year for which dates are given;
+# Whitaker's notes that British Summer Time (and, in some years, Double Summer
+# Time) was observed in earlier years but does not give start and end dates.
+#
+# A source at the British Information Office in New York avers that it's
+# known as "British" Summer Time in all parts of the United Kingdom.
+#	1960	April 10	October 2 (yes, 2, according to the almanac)
+#	1961	March 26	October 29
+#	1962	March 25	October 28
+#	1963	March 31	October 27
+#	1964	March 22	October 25
+#	1965	March 21	October 24
+#	1966	March 20	October 23
+#	1967	March 19	October 29
+#	1968	February 18	October 27
+# "British Standard Time, also one hour ahead of G. M. T., was kept between
+# 1968 Oct. 27-1971 Oct. 31."
+#	1972	March 19	October 29
+#	1973	March 18	October 28
+#	1974	March 17	October 27
+#	1975	March 16	October 26
+#	1976	March 21	October 24
+#	1977	March 20	October 23
+#	1978	March 19	October 29
+#	1979	March 18	October 28
+#	1980	March 16	October 26
+#	1981	March 29	October 25
+#	1982	March 28	October 24
+#	1983	March 27	October 23
+#	1984	March 25	October 28
+#	1985	March 31	October 27
+#	1986	March 30	October 26
+#	1987	March 29	October 25
+
+# From an Anonymous U. K. Donor (January 4, 1989):
+#
+# It is NOT possible to predict when [British Summer Time] will change
+# in a future year.
+# 
+# (The admiralty calculate when they think it should be (no more that a couple
+# of years in advance) and advise the government who then decide whether or 
+# not they will take the admiralty's advice)
+# 
+# ...the Gre[e]nwich...observatory...[was] very helpful.
+# 
+# I was not able to track down the Admiralty formula (I tried hard but failed)
+
+# ...
+# Date: 4 Jan 89 08:57:25 GMT (Wed)
+# From: Jonathan Leffler <nih-csl!uunet!mcvax!sphinx.co.uk!john>
+# ...
+# [British Summer Time] is fixed annually by Act of Parliament.
+# If you can predict what Parliament will do, you should be in
+# politics making a fortune, not computing.
+#
+# Summer time ends on Sunday 29 October 1989.
+
+# ...
+# Date: 5 Jan 89 09:50:38 GMT (Thu)
+# From: Peter Kendell <nih-csl!uunet!mcvax!tcom.stc.co.uk!pete>
+# ...
+# 
+# From my Collins Diary for 1989 - 
+# 
+# "At the time of going to press the Home Office was unable to confirm
+# the 1989 starting and finishing dates for BST*, but expressed the 
+# view that 26 March and 29 October were the likeliest dates to be
+# adopted"
+# 
+# *British Summer Time.
+
+# From an Anonymous U. K. Donor (January 5, 1989):
+#
+# . . .our government is seriously considering applying Double Summer Time -
+# putting the clocks forwards and back TWO hours for daylight saving time.
+# This is advocated to standardise time in the EEC - we're all supposed to
+# keep the same time and to change the clocks on the same dates in the future.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# Historic starting rules
+Rule	GB-Eire	1960	only	-	Apr	10	1:00s	1:00	BST
+Rule	GB-Eire	1961	1963	-	Mar	lastSun	1:00s	1:00	BST
+Rule	GB-Eire	1964	1967	-	Mar	Sun>=19	1:00s	1:00	BST
+Rule	GB-Eire	1968	only	-	Feb	18	1:00s	1:00	BST
+Rule	GB-Eire	1972	1980	-	Mar	Sun>=16	1:00s	1:00	BST
+# Historic ending rules
+Rule	GB-Eire	1960	only	-	Oct	2	1:00s	0	GMT
+Rule	GB-Eire	1961	1967	-	Oct	Sun>=23	1:00s	0	GMT
+Rule	GB-Eire	1971	only	-	Oct	31	1:00s	0	GMT
+# Current rules
+Rule	GB-Eire	1981	max	-	Mar	lastSun	1:00s	1:00	BST
+Rule	GB-Eire	1972	max	-	Oct	Sun>=23	1:00s	0	GMT
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	GB-Eire		0:00	GB-Eire		%s	1968 Oct 27 1:00s
+			1:00	-		BST	1971 Oct 31 1:00s
+			0:00	GB-Eire		%s
+
+###############################################################################
+
+# Continental Europe
+
+# The use of 1986 as starting years below is conservative.
+
+Rule	W-Eur	1986	max	-	Mar	lastSun	1:00s	1:00	" DST"
+Rule	W-Eur	1986	max	-	Sep	lastSun	1:00s	0	-
+
+Rule	M-Eur	1986	max	-	Mar	lastSun	2:00s	1:00	" DST"
+Rule	M-Eur	1986	max	-	Sep	lastSun	2:00s	0	-
+
+Rule	E-Eur	1986	max	-	Mar	lastSun	3:00s	1:00	" DST"
+Rule	E-Eur	1986	max	-	Sep	lastSun	3:00s	0	-
+
+Rule	Turkey	1986	max	-	Mar	lastSun	1:00	1:00	" DST"
+Rule	Turkey	1986	max	-	Sep	lastSun	1:00	0	-
+
+Rule	W-SU	1986	max	-	Mar	lastSun	2:00s	1:00	" DST"
+Rule	W-SU	1986	max	-	Sep	lastSun	2:00s	0	-
+
+# Zone	NAME		GMTOFF	RULES/SAVE	FORMAT	[UNTIL]
+Zone	WET		0:00	W-Eur		WET%s
+Zone	Iceland		0:00	-		WET
+Zone	MET		1:00	M-Eur		MET%s
+Zone	Poland		1:00	W-Eur		MET%s
+Zone	EET		2:00	E-Eur		EET%s
+Zone	Turkey		3:00	Turkey		EET%s
+Zone	W-SU		3:00	M-Eur		????
+
+# Tom Hoffman says that MET is also known as Central European Time
+
+Link	MET	CET
+
+###############################################################################
+
+# One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from
+# the last Sunday in March to the last Sunday in September in 1986.
+# The source shows Romania changing a day later than everybody else.
+#
+# According to Bernard Sieloff's source, Poland is in the MET time zone but
+# uses the WE DST rules.  The Western USSR uses EET+1 and ME DST rules.
+# Bernard Sieloff's source claims Romania switches on the same day, but at
+# 00:00 standard time (i.e., 01:00 DST).  It also claims that Turkey
+# switches on the same day, but switches on at 01:00 standard time
+# and off at 00:00 standard time (i.e., 01:00 DST)
+
+# ...
+# Date: Wed, 28 Jan 87 16:56:27 -0100
+# From: seismo!mcvax!cgcha!wtho (Tom Hofmann)
+# Message-Id: <8701281556.AA22174@cgcha.uucp>
+# ...
+# 
+# ...the European time rules are...standardized since 1981, when
+# most European coun[tr]ies started DST.  Before that year, only
+# a few countries (UK, France, Italy) had DST, each according
+# to own national rules.  In 1981, however, DST started on
+# 'Apr firstSun', and not on 'Mar lastSun' as in the following
+# years...
+# But also since 1981 there are some more national exceptions 
+# than listed in 'europe': Switzerland, for example, joined DST 
+# one year later, Denmark ended DST on 'Oct 1' instead of 'Sep 
+# lastSun' in 1981---I don't know how they handle now.
+# 
+# Finally, DST ist always from 'Apr 1' to 'Oct 1' in the
+# Soviet Union (as far as I know).  
+# 
+# Tom Hofmann, Scientific Computer Center, CIBA-GEIGY AG,
+# 4002 Basle, Switzerland
+# UUCP: ...!mcvax!cernvax!cgcha!wtho
+
+# ...
+# Date: Wed, 4 Feb 87 22:35:22 +0100
+# From: seismo!mcvax!cwi.nl!dik (Dik T. Winter)
+# ...
+# 
+# The information from Tom Hofmann is (as far as I know) not entirely correct.
+# After a request from chongo at amdahl I tried to retrieve all information
+# about DST in Europe.  I was able to find all from about 1969.
+# 
+# ...standardization on DST in Europe started in about 1977 with switches on
+# first Sunday in April and last Sunday in September...
+# In 1981 UK joined Europe insofar that
+# the starting day for both shifted to last Sunday in March.  And from 1982
+# the whole of Europe used DST, with switch dates April 1 and October 1 in
+# the Sov[i]et Union.  In 1985 the SU reverted to standard Europe[a]n switch
+# dates...
+# 
+# It should also be remembered that time-zones are not constants; e.g.
+# Portugal switched in 1976 from MET (or CET) to WET with DST...
+# Note also that though there were rules for switch dates not
+# all countries abided to these dates, and many individual deviations
+# occurred, though not since 1982 I believe.  Another note: it is always
+# assumed that DST is 1 hour ahead of normal time, this need not be the
+# case; at least in the Netherlands there have been times when DST was 2 hours
+# in advance of normal time.
+# 
+# ...
+# dik t. winter, cwi, amsterdam, nederland
+# INTERNET   : dik@cwi.nl
+# BITNET/EARN: dik@mcvax
+
+# From Bob Devine (January 28, 1988):
+# ...
+# Greece: Last Sunday in April to last Sunday in September (iffy on dates).
+# Since 1978.  Change at midnight.
+# ...
+# Monaco: has same DST as France.
+# ...