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Import tzdata2000b.

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kleink 2000-02-24 00:22:07 +00:00
parent b946b459ec
commit 8e96b15fa3
8 changed files with 261 additions and 685 deletions
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50
share/zoneinfo/antarctica
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@ -1,9 +1,9 @@
# @(#)antarctica 7.16
# @(#)antarctica 7.18
# From Paul Eggert (1999-03-22):
# From Paul Eggert (1999-11-15):
# To keep things manageable, we list only locations occupied year-round; see
# <a href="http://www.delm.tas.gov.au/comnap/members.html">
# Antarctic Activities of Member Nations of the Antarctic Treaty (1996-05-24)
# <a href="http://www.comnap.aq/comnap/comnap.nsf/P/Stations/">
# COMNAP - Stations and Bases
# </a>
# and
# <a href="http://www.spri.cam.ac.uk/bob/periant.htm">
@ -35,18 +35,28 @@ Rule ChileAQ 1999 max - Oct Sun>=9 0:00 1:00 S
Rule ChileAQ 2000 max - Mar Sun>=9 0:00 0 -
# Argentina - 6 year-round bases
# General Belgrano II
# 5 others
# Argentina - year-round bases
# Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05
# Esperanza, San Martin Land, -6323-05659, since 1952-12-17
# Jubany, Potter Peninsula, King George Island, -6414-0602320, since 1982-01
# Marambio, Seymour I, -6414-05637, since 1969-10-29
# Orcadas, Laurie I, -6016-04444, since 1904-02-22
# San Martin, Debenham I, -6807-06708, since 1951-03-21
# (except 1960-03 / 1976-03-21)
# Australia - territories
# Heard Island, McDonald Islands (uninhabited)
# previously sealers and scientific personnel wintered
# <a href="http://www.dstc.qut.edu.au/DST/marg/daylight.html">
# Margaret Turner reports
# </a> (1999-09-30) that they're UTC+5, with no DST;
# presumably this is when they have visitors.
#
# year-round bases
# Casey, Bailey Peninsula, since 1969
# Davis, Vestfold Hills, since 1957-01-13 (except 1964-11 - 1969-02)
# Mawson, Holme Bay, since 1954-02-13
# Casey, Bailey Peninsula, -6617+11032, since 1969
# Davis, Vestfold Hills, -6835+07759, since 1957-01-13
# (except 1964-11 - 1969-02)
# Mawson, Holme Bay, -6736+06253, since 1954-02-13
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Antarctica/Casey 0 - ___ 1969
8:00 - WST # Western (Aus) Standard Time
@ -70,15 +80,16 @@ Zone Antarctica/Mawson 0 - ___ 1954 Feb 13
# Brazil - year-round base
# Ferraz, King George Island, since 1983/4
# Chile - 4 year-round bases
# Chile - year-round bases
# Escudero, South Shetland Is, -621157-0585735, since 1994
# Frei, King George Is, -6214-05848, since 1969
# O'Higgins, Antarctic Peninsula, -6319-05704, since 1948-02
# Prat, -6230-05941
# China - year-round bases
# Great Wall, King George Island, since 1985-02-20
# Zhongshan, Larsemann Hills, Prydz Bay, since 1989-02-26
# Finland - year-round base
# Aboa, Queen Maud Land, since 1988
# France - year-round bases
#
# From Antoine Leca <Antoine.Leca@Renault.FR> (1997-01-20):
@ -103,7 +114,7 @@ Zone Indian/Kerguelen 0 - ___ 1950 # Port-aux-Francais
5:00 - TFT # ISO code TF Time
#
# year-round base in the main continent
# Dumont-d'Urville, Terre Adelie (Adelie Land), -6640+14001, since 1956-11
# Dumont-d'Urville, Ile des Petrels, -6640+14001, since 1956-11
#
# Another base at Port-Martin, 50km east, began operation in 1947.
# It was destroyed by fire on 1952-01-14.
@ -172,11 +183,11 @@ Rule NZAQ 1990 max - Mar Sun>=15 2:00s 0 S
# Peter I Island (never inhabited)
# Poland - year-round base
# Arctowski, King George Island, since 1977
# Arctowski, King George Island, -620945-0582745, since 1977
# Russia - year-round bases
# Bellingshausen, King George Island
# Mirny
# Bellingshausen, King George Island, -621159-0585337, since 1968-02-22
# Mirny, Davis coast, -6633+09301, since 1956-02
# Molodezhnaya
# Novolazarevskaya
# Vostok
@ -198,11 +209,12 @@ Rule NZAQ 1990 max - Mar Sun>=15 2:00s 0 S
# and a garrison was deployed briefly
#
# year-round bases
# Bird Island, South Georgia, -5400-03803, since 1983
# Halley, Coates Land, -7535-2619, since 1956-01-06
# Rothera, Adelaide Island, -6734-6808, since 1976-12-01
# Uruguay - year round base
# Artigas, King George Island
# Artigas, King George Island, -621104-0585107
# USA - year-round bases
#

103
share/zoneinfo/asia
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@ -1,4 +1,4 @@
# @(#)asia 7.50
# @(#)asia 7.54
# 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
@ -84,8 +84,7 @@ Zone Asia/Kabul 4:36:48 - LMT 1890
# <edd@AIC.NET> reported (1996-05-04) that Yerevan probably wouldn't use DST
# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
# but started switching at 3:00s in 1998. IATA SSIM (1999-02) reports
# that they switch one day later in 2001 (i.e. on Mondays).
# but started switching at 3:00s in 1998.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
3:00 - YERT 1957 Mar # Yerevan Time
@ -235,8 +234,7 @@ Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
8:00 HK HK%sT 1997 Jul 1 # return to China
8:00 PRC C%sT
8:00 HK HK%sT
###############################################################################
@ -528,7 +526,7 @@ Rule Zion 1988 only - Apr 9 0:00 1:00 D
Rule Zion 1988 only - Sep 3 0:00 0 S
# From Ephraim Silverberg <ephraim@cs.huji.ac.il>
# (1997-03-04, 1998-03-16 and 1998-12-28):
# (1997-03-04, 1998-03-16, 1998-12-28, and 2000-01-17):
# According to the Office of the Secretary General of the Ministry of
# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
@ -542,7 +540,11 @@ Rule Zion 1988 only - Sep 3 0:00 0 S
# conflicts with the Jewish New Year. Starting in 1999, the change to
# daylight savings time will still be on a Friday morning but from
# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
# will now also be on a Friday morning from 2 a.m. IDT to 1 a.m. IST.
# will now also be on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
# 1999 only. In the years from 2000 to 2002, the change back will be from
# 2 a.m. IDT to 1 a.m. IST the morning after the Jewish festival of
# Shmini Atzeret (i.e. the morning of the 23rd of Tishrei in the lunar
# Hebrew calendar).
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1989 only - Apr 30 0:00 1:00 D
@ -590,18 +592,29 @@ Rule Zion 1998 only - Sep 6 0:00 0 S
Rule Zion 1999 only - Apr 2 2:00 1:00 D
Rule Zion 1999 only - Sep 3 2:00 0 S
# Due to imminent elections in 1999, there are no dates for the year 2000
# and beyond. There was a move to legislate the DST rules in Israel, but
# due to the government's fall, it most likely won't be brought to the Knesset
# for first reading before the elections and will probably be altered by the
# newly elected government.
# Minister of Interior, Natan Sharansky, has announced the dates for
# the years 2000-2002. However, sources inside the ministry have noted
# that the end date of 2000 and both dates of 2001-2002 should be regarded
# as tentative pending final approval.
#
# The official announcement for the years 2000-2001 can be viewed at:
#
# ftp://ftp.huji.ac.il/pub/tz/announcements/2000-2002.ps.gz
# From Paul Eggert (1999-01-30):
# Here are guesses for rules after 1999.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2000 only - Apr 14 2:00 1:00 D
Rule Zion 2000 only - Oct 22 2:00 0 S
Rule Zion 2001 only - Apr 6 2:00 1:00 D
Rule Zion 2001 only - Oct 10 2:00 0 S
Rule Zion 2002 only - Mar 29 2:00 1:00 D
Rule Zion 2002 only - Sep 29 2:00 0 S
# From Paul Eggert (2000-01-17):
# Here are guesses for rules after 2002.
# They are probably wrong, but they are more likely than no DST at all.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2000 max - Apr Fri>=1 2:00 1:00 D
Rule Zion 2000 max - Sep Fri>=1 2:00 0 S
Rule Zion 2003 max - Mar Fri>=25 2:00 1:00 D
Rule Zion 2003 max - Oct 1 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Jerusalem 2:20:56 - LMT 1880
@ -853,31 +866,62 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
5:00 - MVT # Maldives Time
# Mongolia
# Shanks says that Mongolia has three time zones, but usno1995 and the CIA map
# Standard Time Zones of the World (1997-01)
# both say that it has just one.
# Let's comment out the western and eastern Mongolian time zones
# till we know what their principal towns are.
# From Oscar van Vlijmen (1999-12-11):
# <a href="http://www.mongoliatourism.gov.mn/general.htm">
# General Information Mongolia
# </a> (1999-09)
# "Time: Mongolia has two time zones. Three westernmost provinces of
# Bayan-Ulgii, Uvs, and Hovd are one hour earlier than the capital city, and
# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
# eight hours."
# From Rives McDow (1999-12-13):
# Mongolia discontinued the use of daylight savings time in 1999; 1998
# being the last year it was implemented. The dates of implementation I am
# unsure of, but most probably it was similar to Russia, except for the time
# of implementation may have been different....
# Some maps in the past have indicated that there was an additional time
# zone in the eastern part of Mongolia, including the provinces of Dornod,
# Suhbaatar, and possibly Khentij.
# From Paul Eggert (1999-12-15):
# For now, we'll comment out the east zone (Choybalsan)
# and use Shanks's and the IATA's data for the daylight-saving rules.
# Naming and spelling is tricky in Mongolia.
# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
# and sometimes Jirgalanta (with variant spellings), but the name Hovd
# is good enough for our purposes.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1981 1984 - Apr 1 0:00 1:00 S
Rule Mongol 1981 1984 - Oct 1 0:00 0 -
Rule Mongol 1985 1990 - Mar lastSun 2:00 1:00 S
Rule Mongol 1985 1990 - Sep lastSun 3:00 0 -
Rule Mongol 1991 max - Mar lastSun 0:00 1:00 S
Rule Mongol 1991 1998 - Mar lastSun 0:00 1:00 S
Rule Mongol 1991 1995 - Sep lastSun 0:00 0 -
# IATA SSIM (1996-09) says 1996-10-25; go with Shanks.
Rule Mongol 1996 only - Oct lastSun 0:00 0 -
Rule Mongol 1997 max - Sep lastSun 0:00 0 -
Rule Mongol 1997 1998 - Sep lastSun 0:00 0 -
# IATA SSIM (1999-09) says Mongolia no longer observes DST.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#Zone Asia/Dariv 6:14:32 - LMT 1905 Aug
# 6:00 - DART 1978 # Dariv Time
# 7:00 Mongol DAR%sT
Zone Asia/Ulan_Bator 7:07:32 - LMT 1905 Aug
7:00 - ULAT 1978 # Ulan Bator Time
Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
6:00 - HOVT 1978 # Hovd Time
7:00 Mongol HOV%sT
Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
7:00 - ULAT 1978 # Ulaanbaatar Time
8:00 Mongol ULA%sT
#Zone Asia/Baruun-Urt 7:33:00 - LMT 1905 Aug
# 8:00 - BART 1978 # Baruun-Urt Time
# 9:00 Mongol BAR%sT
# We're not sure about this entry yet, so we'll omit it for now.
#Zone Asia/Choybalsan 7:38:00 - LMT 1905 Aug
# 8:00 - CHOT 1978 # Choybalsan Time
# 9:00 Mongol CHO%sT 19??
# 8:00 Mongol ULA%sT
# Nepal
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@ -1097,7 +1141,8 @@ Rule Syria 1993 only - Mar 26 0:00 1:00 S
Rule Syria 1993 only - Sep 25 0:00 0 -
# IATA SSIM (1998-02) says 1998-04-02;
# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
# 2000-04-02, and 2001-04-02; ignore all these claims and go with Shanks.
# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
# ignore all these claims and go with Shanks.
Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
Rule Syria 1994 max - Oct 1 0:00 0 -
Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S

87
share/zoneinfo/australasia
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@ -1,4 +1,4 @@
# @(#)australasia 7.53
# @(#)australasia 7.55
# This file also includes Pacific islands.
# Notes are at the end of this file
@ -151,11 +151,13 @@ Zone Australia/Broken_Hill 9:25:48 - LMT 1895 Feb
Rule LH 1981 1984 - Oct lastSun 2:00s 1:00 -
Rule LH 1982 1985 - Mar Sun>=1 2:00s 0 -
Rule LH 1985 only - Oct lastSun 2:00s 0:30 -
Rule LH 1986 1991 - Mar Sun>=15 2:00s 0 -
Rule LH 1986 1989 - Mar Sun>=15 2:00s 0 -
Rule LH 1986 only - Oct 19 2:00s 0:30 -
Rule LH 1987 max - Oct lastSun 2:00s 0:30 -
Rule LH 1992 1995 - Mar Sun>=1 2:00s 0 -
Rule LH 1987 1999 - Oct lastSun 2:00s 0:30 -
Rule LH 1990 1995 - Mar Sun>=1 2:00s 0 -
Rule LH 1996 max - Mar lastSun 2:00s 0 -
Rule LH 2000 only - Aug lastSun 2:00s 0:30 -
Rule LH 2001 max - Oct lastSun 2:00s 0:30 -
Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb
10:00 - EST 1981 Mar
10:30 LH LHST
@ -164,7 +166,7 @@ Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb
#
# Ashmore Is, Cartier
# no indigenous inhabitants; only seasonal caretakers
# no information; probably like Australia/Perth
# like Australia/Perth, says Turner
#
# Coral Sea Is
# no indigenous inhabitants; only meteorologists
@ -173,13 +175,7 @@ Zone Australia/Lord_Howe 10:36:20 - LMT 1895 Feb
# Macquarie
# permanent occupation (scientific station) since 1948;
# sealing and penguin oil station operated 1888/1917
# <a href="http://www.bom.gov.au/faq/faqgen.htm">
# The Australian Bureau of Meteorology FAQ
# </a> (1999-09-27) writes that Macquarie Island follows Tasmanian practice
# irrespective of any local use of DST. This is unclear; ignore it for now.
#
# Manihiki, Penrhyn, Rakehanga
# no information
# like Australia/Hobart, says Turner
# Christmas
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@ -348,7 +344,7 @@ Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston
11:12 - NMT 1951 # Norfolk Mean Time
11:30 - NFT # Norfolk Time
# Palau
# Palau (Belau)
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Pacific/Palau 8:57:56 - LMT 1901 # Koror
9:00 - PWT # Palau Time
@ -508,6 +504,10 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Australia
# <a href="http://www.dstc.qut.edu.au/DST/marg/daylight.html">
# Australia's Daylight Saving Times
# </a>, by Margaret Turner, summarizes daylight saving issues in Australia.
# From John Mackin (1991-03-06):
# We in Australia have _never_ referred to DST as `daylight' time.
# It is called `summer' time. Now by a happy coincidence, `summer'
@ -846,16 +846,23 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Lord Howe Island is located off the New South Wales coast, and is half an
# hour ahead of NSW time.
# From Paul Eggert (1995-12-19):
# For Lord Howe we use Shanks through 1991.
# Lord Howe is part of NSW, so we'll guess it has used the same transition
# times as NSW since 1991, even though Shanks writes that Lord Howe went
# with Victoria when NSW and Victoria disagreed in 1982.
# From James Lonergan, Secretary, Lord Howe Island Board (2000-01-27):
# Lord Howe Island summer time in 2000/2001 will commence on the same
# date as the rest of NSW (i.e. 2000-08-27). For your information the
# Lord Howe Island Board (controlling authority for the Island) is
# seeking the community's views on various options for summer time
# arrangements on the Island, e.g. advance clocks by 1 full hour
# instead of only 30 minutes. Dependant on the wishes of residents
# the Board may approach the NSW government to change the existing
# arrangements. The starting date for summer time on the Island will
# however always coincide with the rest of NSW.
# From Paul Eggert (2000-01-31):
# For Lord Howe we use Shanks through 1989, and Lonergan thereafter.
###############################################################################
# New Zealand, from Elz' asia 1.1
# Elz says "no guarantees"
# New Zealand
# From Mark Davies (1990-10-03):
# the 1989/90 year was a trial of an extended "daylight saving" period.
@ -896,6 +903,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
###############################################################################
# Fiji
# Howse writes (p 153) that in 1879 the British governor of Fiji
@ -907,6 +915,9 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# until 0300 local time 1999-02-28. Each year the DST period will
# be from the first Sunday in November until the last Sunday in February.
# From Paul Eggert (2000-01-08):
# IATA SSIM (1999-09) says DST ends 0100 local time. Go with McDow.
# From the BBC World Service (1998-10-31 11:32 UTC):
# The Fijiian government says the main reasons for the time change is to
# improve productivity and reduce road accidents. But correspondents say it
@ -914,10 +925,12 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# islands in the effort to attract tourists to witness the dawning of the new
# millenium.
# Johnston
# Johnston data is from usno1995.
# Kiribati
# From Paul Eggert (1996-01-22):
@ -925,6 +938,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# ``declared it the same day throught the country as of Jan. 1, 1995''
# as part of the competition to be first into the 21st century.
# Kwajalein
# In comp.risks 14.87 (26 August 1993), Peter Neumann writes:
@ -933,6 +947,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# respect to the International Date Line, to rejoin its fellow islands,
# going from 11:59 p.m. Thursday to 12:00 m. Saturday in a blink.
# N Mariana Is, Guam
# Howse writes (p 153) ``The Spaniards, on the other hand, reached the
@ -940,6 +955,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# (now called the Marianas) kept American date for quite some time.
# Ignore this for now, as we have no hard data. See also Asia/Manila.
# Micronesia
# Alan Eugene Davis <adavis@kuentos.guam.net> writes (1996-03-16),
@ -957,6 +973,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11.
# We don't know when Kosrae switched from UTC+12; assume January 1 for now.
# Pitcairn
# From Rives McDow (1999-11-08):
@ -980,6 +997,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Pacific Standard Time. They used to be 1/2 hour different from us here in
# Sacramento but it was changed a couple of years ago.
# Samoa
# Howse writes (p 153, citing p 10 of the 1883-11-18 New York Herald)
@ -988,6 +1006,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# ordaining -- by a masterpiece of diplomatic flattery -- that
# the Fourth of July should be celebrated twice in that year.''
# Tonga
# From Paul Eggert (1996-01-22):
@ -1057,3 +1076,31 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# From Rives McDow (1999-10-06):
# Tonga started its Daylight Saving on Saturday morning October 2nd at 0200am.
# Daylight Saving ends on April 16 at 0300am which is Sunday morning.
###############################################################################
# The International Date Line
# From Gwillim Law (2000-01-03):
#
# The International Date Line is not defined by any international standard,
# convention, or treaty. Mapmakers are free to draw it as they please.
# Reputable mapmakers will simply ensure that every point of land appears on
# the correct side of the IDL, according to the date legally observed there.
#
# When Kiribati adopted a uniform date in 1995, thereby moving the Phoenix and
# Line Islands to the west side of the IDL (or, if you prefer, moving the IDL
# to the east side of the Phoenix and Line Islands), I suppose that most
# mapmakers redrew the IDL following the boundary of Kiribati. Even that line
# has a rather arbitrary nature. The straight-line boundaries between Pacific
# island nations that are shown on many maps are based on an international
# convention, but are not legally binding national borders.
#
# An Anglo-French Conference on Time-Keeping at Sea (June, 1917) agreed that
# legal time on the high seas would be zone time, i.e., the standard time at
# the nearest meridian that is a multiple of fifteen degrees. The date is
# governed by the IDL; therefore, even on the high seas, there may be some
# places as late as fourteen hours later than UTC. And, since the IDL is not
# an international standard, there are some places on the high seas where the
# correct date is ambiguous.

4
share/zoneinfo/backward
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@ -1,4 +1,4 @@
# @(#)backward 7.16
# @(#)backward 7.17
# This file provides links between current names for time zones
# and their old names. Many names changed in late 1993.
@ -9,6 +9,7 @@ Link America/Indianapolis America/Fort_Wayne
Link America/Indiana/Knox America/Knox_IN
Link America/St_Thomas America/Virgin
Link Asia/Jerusalem Asia/Tel_Aviv
Link Asia/Ulaanbaatar Asia/Ulan_Bator
Link Australia/Sydney Australia/ACT
Link Australia/Sydney Australia/Canberra
Link Australia/Lord_Howe Australia/LHI
@ -39,6 +40,7 @@ Link America/Havana Cuba
Link Africa/Cairo Egypt
Link Europe/Dublin Eire
Link Europe/London GB
Link Europe/London GB-Eire
Link Etc/GMT+0 GMT+0
Link Etc/GMT-0 GMT-0
Link Etc/GMT0 GMT0

612
share/zoneinfo/europe
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@ -1,4 +1,4 @@
# @(#)europe 7.67
# @(#)europe 7.69
# 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
@ -162,586 +162,15 @@
# Howse writes (p 157) `DBST'; let's assume this is a typo.
# From Peter Ilieve <peter@aldie.co.uk> (1998-04-19):
# The following list attempts to show the complete history of Summer Time
# legislation in the United Kingdom, and has quite a bit to say about
# the Isle of Man and the Channel Islands as well.
#
# Things that I have not personally seen are marked (???). Things that
# I haven't seen but Joseph Myers has are marked (jsm). The problem
# with finding old Orders (rather than Acts) is that nobody seems to
# keep the actual documents themselves, not even the Government. They
# get bound into annual volumes, which are published, but by the time
# this happens the Orders are mainly spent as the years they refer
# to have come and gone, so they don't get included in the annual
# volumes.
#
# Thanks are due to my learned legal friend Lorna Montgomerie, who dug out
# the dusty old statutes, to Melanie Allison of the Ministry of Defence,
# who provided the wartime regulations and a snippet of Hansard explaining
# why double summer time started on a Monday in 1945 (it was Easter),
# and to Joseph Myers <jsm28@cam.ac.uk>, who tracked down the Orders
# up to 1945, some of the old Acts, and the first five EC Directives.
#
# Some definitions:
#
# Great Britain: England, Scotland and Wales
# United Kingdom: Great Britain plus Ireland (up to 1922) or Northern
# Ireland (since 1922)
# S.I.: Statutory Instrument, the modern name for secondary legislation
# S.R.&O.: Statutory Rules and Orders, the older name for secondary legislation
#
# Unless otherwise specified, Acts and secondary legislation are assumed
# to apply throughout the United Kingdom, but not to the Isle of Man
# or the Channel Islands.
#
# Some of the Acts and Orders I found in various libraries, and I don't
# have copies. When I looked at them I was looking for dates and not things
# like whether they applied to the Bailiwick of Jersey. I will try to
# check these documents again.
#
# ---
#
# - The Statutes (Definition of Time) Act, 1880 (43 & 44 Vict. c. 9)
#
# Defined Greenwich mean time to be the standard time in Great Britain
# and Dublin mean time to be the standard time in Ireland, superseding
# various forms of local mean time.
#
# - The Statutory Time Act, 1883 (???)
#
# An Act of Tynwald, the Isle of Man Parliament. It appears to have
# defined the standard time on the Isle of Man as GMT but as I haven't
# seen it I don't know if it used Greenwich mean time, some other definition,
# or just said that Isle of Man time would be the same as in Great Britain.
#
# - The Isle of Man (War Legislation) Act, 1914 (4 & 5 Geo. 5. c. 62)
#
# Gives the power, by Order in Council, to extend wartime legislation
# to the Isle of Man.
#
# - The Summer Time Act, 1916 (6 & 7 Geo. 5. c. 14)
#
# Introduced Summer Time for the first time, in Great Britain and Ireland.
# Specified a one hour offset from GMT (DMT in Ireland), dates of
# Sunday 21 May and Sunday 1 October and times of 02:00 (GMT/DMT).
# Gave a power to make Orders in subsequent years, for the duration
# of the then current war.
#
# - The Time (Ireland) Act, 1916 (6 & 7 Geo. 5. c. 45)
#
# This abolished Dublin mean time at 02:00 DMT on Sunday 1 October 1916,
# bringing the whole of the United Kingdom onto GMT. As Ireland was behind
# GMT/BST at 02:00 DMT on 1 Oct Great Britain had already put the clocks back.
# Using Paul Eggert's suggestion of IST for Irish Summer Time and the figure
# derived from Whitman for the offset of IST from GMT (00:34:39) the sequence
# would have been:
# Dublin London
# 02:34:38 IST 02:59:59 BST
# 02:34:39 IST 02:00:00 GMT
# 02:59:59 IST 02:25:20 GMT
# 02:25:21 GMT 02:25:21 GMT
# with the transition 03:00:00 IST -> 02:00:00 DMT -> 02:25:21 GMT all at once.
#
# - S.R.&O. 1916, No. 382
#
# An Order made under the Isle of Man (War Legislation) Act, 1914
# extending the Summer Time Act, 1916 to the Isle of Man. Dated
# 23 May 1916, two days after the start of Summer Time, but it says that
# the Act is deemed to have taken effect in the Isle of Man at the same
# time as it took effect in the United Kingdom.
#
# - S.R.&O. 1917, No. 362
#
# An Order made under the Summer Time Act, 1916 giving dates
# for Summer Time in 1917 of Sunday 8 April to Monday 17 September,
# both at 02:00 GMT. Note that Summer Time ends on a Monday.
#
# - S.R.&O. 1917, No. 358
#
# An Order made under the Summer Time (Isle of Man) Act, 1916
# (the thing created by S.R.&O. 1916, No. 382) specifying the same
# dates of 8 April to 17 September, at 02:00 GMT for the Isle of Man.
#
# - S.R.&O. 1918, No. 274
#
# An Order made under the Summer Time Act, 1916 giving dates
# for Summer Time in 1918 of Sunday 24 March to Monday 30 September,
# both at 02:00 GMT.
#
# - S.R.&O. 1918, No. 429
#
# The matching Isle of Man Order for 1918 with the same dates and times.
#
# - The Termination of the Present War (Definition) Act, 1918
# (8 & 9 Geo. 5. c. 59)
#
# This gave power to specify a legal end date for the war just ended,
# which would affect things like the Summer Time Act, 1916, which applied
# only in wartime. This date was to be close to the date of formal
# ratification of the treaty or treaties of peace.
#
# - S.R.&O. 1919, No. 297
#
# An Order made under the Summer Time Act, 1916 giving dates
# for Summer Time in 1919 of Sunday 30 March to Monday 29 September,
# both at 02:00 GMT.
#
# - S.R.&O. 1919, No. 366
#
# The matching Isle of Man Order for 1919 with the same dates and times.
#
# - S.R.&O. 1920, No. 458
#
# An Order made under the Summer Time Act, 1916 giving dates
# for Summer Time in 1920 of Sunday 28 March to Monday 27 September,
# both at 02:00 GMT.
#
# - S.R.&O. 1920, No. 573
#
# The matching Isle of Man Order for 1920 with the same dates and times.
#
# - S.R.&O. 1920, No. 1844
#
# An Order modifying both S.R.&O. 1920, No. 458 and S.R.&O. 1920, No. 573 to
# change the end date for Summer Time from Monday 27 September to
# Monday 25 October (the time remaining 02:00 GMT). The 1989 Green
# Paper (Cm 722) says this was done because of a coal strike.
#
# - The War Emergency Laws (Continuance) Act, 1920 (10 Geo. 5. c. 5)
#
# This extends the power to make Orders under the Summer Time Act, 1916
# for a period of 12 months after the termination of the war.
# Came into force on 31 March 1920. Although the war had been over for more
# than 12 months by then the legal end date had not yet been set.
#
# - S.R.&O. 1921, No. 363
#
# An Order made under the Summer Time Act, 1916 and the War
# Emergency Laws (Continuance) Act, 1920 giving dates for Summer Time
# in 1921 of Sunday 3 April to Monday 3 October, both at 02:00 GMT.
#
# - S.R.&O. 1921, No. 364
#
# The matching Isle of Man Order for 1921 with the same dates and times.
#
# - S.R.&O. 1922, No. 264
#
# An Order made under the Summer Time Act, 1916 and the War
# Emergency Laws (Continuance) Act, 1920 giving dates for Summer Time
# in 1921 of Sunday 26 March to Sunday 8 October, both at 02:00 GMT.
# It also mentions the arrangements for defining the legal end date
# for the late war. An Order was made on 10 August 1921, under the
# Termination of the Present War (Definition) Act, 1918, setting
# a date of 31 August 1921. This means the powers of the Summer Time
# Act, 1916 would finally expire on 31 August 1922.
#
# - S.R.&O. 1922, No. 290 (???)
#
# This is probably the matching Isle of Man Order.
#
# - The Summer Time Act, 1922 (12 & 13 Geo. 5. c. 22)
#
# This specifies an offset of 1 hour and dates of the day after the third
# Saturday in April, unless that be Easter, in which case it is the day after
# the second Saturday, and the day after the third Saturday in September.
# The time is 02:00 GMT. It applied in 1922 and 1923, and longer if Parliament
# so approved. It applied to the Isle of Man and the Channel Islands as well.
# Came into Force on 20 July 1920. Note the reversion to ending on a Sunday.
#
# - S.R.&O. 1922, No. 1205
#
# An Order made under the War Emergency Laws (Continuance) Act, 1920
# dated 13 October 1922. It revokes (among other things) the Order extending
# the Summer Time Act, 1916 to the Isle of Man.
#
# - The Expiring Laws Continuance Act, 1923 (13 & 14 Geo. 5. c. 37)
#
# This extended the Summer Time Act, 1922 (among other things) until
# 31 December 1924.
#
# - The Expiring Laws Continuance Act, 1924 (15 Geo. 5. c. 1) (jsm)
#
# This further extended the Summer Time Act, 1922 (among other things) until
# 31 December 1925.
#
# - The Time Act (Northern Ireland), 1924 (14 & 15 Geo. 5. c. 24 (N.I.))
#
# This Act says that while it remains in force, any Act or Order relating
# to the time for general purposes in Great Britain shall also apply
# in Northern Ireland, and the Time (Ireland) Act, 1916 shall have effect
# accordingly.
#
# - The Summer Time Act, 1925 (15 & 16 Geo. 5. c. 64)
#
# This makes the 1922 Act permanent, with a change to the end date to the
# day after the first Saturday in October. Came into force on 7 August 1925.
#
# - The Emergency Powers (Defence) Act, 1939 (2 & 3 Geo. 6. c. 62) (???)
#
# I haven't seen this one. It presumably gave the Government powers to
# do all manner of things during the newly started war.
#
# - The Defence (Summer Time) Regulations, 1939, S.R.&O. 1939, No. 1379
#
# These were made under the Emergency Powers (Defence) Act, 1939.
# They change the end date to be the day after the third Saturday in November.
#
# - S.R.&O. 1940, No. 172
#
# An Order in Council amending the Defence (Summer Time) Regulations, 1939.
# It changed the start date to the day after the fourth Saturday in February
# (ie. 25 Feb 1940).
#
# - S.R.&O. 1940, No. 1883
#
# Another Order amending the Defence (Summer Time) Regulations, 1939.
# This continues summer time throughout the year after it starts in 1940.
#
# - S.R.&O. 1941, No. 476
#
# Another Order amending the Defence (Summer Time) Regulations, 1939.
# This introduces double summer time, starting at 01:00 GMT on the day after
# the first Saturday in May and ending at 01:00 GMT on the day after the
# second Saturday in August, offset another hour from normal summer time,
# which continues throughout the rest of the year.
#
# - S.R.&O. 1942, No. 506
#
# Another Order amending the Defence (Summer Time) Regulations, 1939.
# This changes the start date of Double Summer Time to the day after the first
# Saturday in April, bringing it forward from May.
#
# - S.R.&O. 1944, No. 932
#
# Another Order amending the Defence (Summer Time) Regulations, 1939.
# This changed the end date of Double Summer Time to the day after the
# third Saturday in September (ie. 17 September 1944).
#
# - S.R.&O. 1945, No. 312
#
# Another Order amending the Defence (Summer Time) Regulations, 1939.
# This changes the start and end dates of Double Summer Time to the
# day after the first Sunday in April and the day after the second Saturday
# in July (ie. Mon 2 April to Sun 15 July).
#
# I have this quote from Hansard (the official record of the United Kingdom
# Parliament), Oral Answers, 1 March 1945, cols 1559--60, explaining the
# unusual start on a Monday:
#
# `58. Major Sir Goronwy Owen asked the Secretary of State for the Home
# Department if he is now able to state the Government's proposals
# regarding double summer time.
#
# [two other similar questions omitted]
#
# Mr. H. Morrison: The Government, in reviewing the matter, have
# considered, [...] the conclusion has been reached that the adoption of
# double summer time from the beginning of April is essential to the
# maintenance of the war effort. [...] As 1st April is Easter Sunday,
# when very early services are held in many churches, it is proposed that
# double summer time shall start not in the night preceding Easter
# Sunday, but in the night of Sunday-Monday so that it will operate from
# Monday, 2nd April.'
#
# - S.R.&O. 1945, No. 1208
#
# An Order under the Emergency Powers (Defence) Acts, 1939 and 1940 revoking
# a long list of things, including the Defence (Summer Time) Regulations, 1939.
# This meant that Summer Time reverted to being set by the 1922 and 1925 Acts.
# It was made on 28 September, early enough to end Summer Time on the
# date defined by the 1925 Act: 7 October.
#
# - The Summer Time Act, 1947 (10 & 11 Geo. 6. c. 16)
#
# Came into force on 11 March 1947. Amended the Summer Time Acts, 1922 and
# 1925 to change the dates of Summer Time and to introduce Double Summer Time
# (although it doesn't give this, or any, name for this period of 2 hour
# offset from GMT). Dates are given for 1947 only and are: 02:00 GMT Sunday
# 16 March, 01:00 GMT Sunday 13 April, 01:00 GMT Sunday 10 August, and 02:00
# Sunday 2 November. It gave a power to make Orders for subsequent years,
# both to vary the dates and to continue Double Summer Time. It applied
# to the Isle of Man and the Channel Islands.
#
# - Summer Time Order, 1948 (S.I. 1948/495)
#
# An Order made under the Summer Time Act, 1947. Gave dates for 1948 of
# 14 March and 31 October, both at 02:00 GMT.
#
# Although the 1947 Act had legislated for Double Summer Time, this was
# not continued after 1947.
#
# - Summer Time Order, 1949 (S.I. 1949/373)
#
# Another Order made under the Summer Time Act, 1947. Gave dates for 1949
# of 3 April and 30 October, both at 02:00 GMT.
#
# - Summer Time Order, 1950 (S.I. 1950/518)
#
# Another Order made under the Summer Time Act, 1947. Gave dates for 1950
# of 16 April and 22 October, both at 02:00 GMT.
#
# - Summer Time Order, 1951 (S.I. 1951/430)
#
# Another Order made under the Summer Time Act, 1947. Gave dates for 1951
# of 15 April and 21 October, both at 02:00 GMT.
#
# - Summer Time Order, 1952 (S.I. 1952/451)
#
# Another Order made under the Summer Time Act, 1947. Gave dates for 1952
# of 20 April and 26 October, both at 02:00 GMT.
#
# This is the last of this run of Orders, so for 1953 things reverted
# to the 1922 and 1925 Acts.
#
# - The Interpretation Act (Northern Ireland), 1954 (1954 c. 33 (N.I.)) (???)
#
# I presume that section 39 of this Act is similar to section 9 of the
# Interpretation Act, 1978 (listed below) in specifying GMT as the
# legal time in Northern Ireland, replacing the Time (Ireland) Act, 1916.
#
# - Summer Time Order, 1961 (S.I. 1961/71)
#
# Specified dates of 26 March and 29 October (02:00 GMT) for 1961
#
# - Summer Time (1962) Order, 1961 (S.I. 1961/2465)
#
# Specified dates of 25 March to 28 October (02:00 GMT) for 1962.
#
# - Summer Time Order, 1963 (S.I. 1963/81)
#
# Specified dates of 31 March to 27 October (02:00 GMT) for 1963.
#
# - Summer Time (1964) Order, 1963 (S.I. 1963/2101)
#
# Specified dates of 22 March to 25 October (02:00 GMT) for 1964.
#
# - Summer Time Order, 1964 (S.I. 1964/1201)
#
# Specified dates for three years (all 02:00 GMT):
# 1965: 21 March to 24 October
# 1966: 20 March to 23 October
# 1967: 19 March to 29 October
#
# - Summer Time Order, 1967 (S.I. 1967/1148)
# - Summer Time Order, 1968 (S.I. 1968/117)
#
# The first of these specifies dates for 1968 of 18 February for the United
# Kingdom but 7 April for the Isle of Man, both ending on 27 October,
# all at 02:00 GMT. The second Order changes the Isle of Man start date
# to 18 February to match the United Kingdom.
#
# - The British Standard Time Act 1968 (1968 c. 45)
#
# This came into force on 27 October 1968 and continued summer time throughout
# the year. It expired at 02:00 GMT on 31 October 1971, as specified in the
# Act, as Parliament did not move to make this experment permanent.
# It applied to the Isle of Man and the Channel Islands.
#
# Interestingly, it says baldly `This Act shall come into force on
# 27 October 1968', without giving a time. As S1 of the Act merely
# stated that `The time for general purposes in the United Kingdom
# (to be known as British standard time) shall be one hour in
# advance of Greenwich mean time throughout the year; ...' you could
# possibly argue that the start time of BStandardT was 00:00 1968-10-27,
# especially as the Act repealed the Summer Time Acts 1916--1947 in toto,
# thereby destroying the authority of the Summer Time Order specifying
# summer time in 1968.
#
# - The Manx Time Act 1968
#
# This is an Act of Tynwald (the Isle of Man Parliament) that said that
# henceforth Manx time would be the same as the time in Great Britain.
#
# - The Summer Time Act 1972 (1972 c. 6)
#
# This specified a reversion to normal Summer Time behaviour with a start
# date of the day after the third Saturday in March, unless that is Easter,
# when it is the day after the second Saturday, and an end date of the day
# after the fourth Saturday in October. Times are at 02:00 GMT, offset is
# 1 hour. It gives the power to make Orders to vary these dates and
# times. This Act is still in force and is the legal authority for
# implementing the EC Directives in the United Kingdom.
#
# - The Interpretation Act 1978 (1978 c. 30)
#
# Section 9 of this Act replaces section 1 of the Statutes (Definition of
# Time) Act, 1880 with very similar wording maintaining GMT as the legal
# time in Great Britain. This does not apply in Northern Ireland (it
# has its own Interpretation Act listed above).
#
# - Council Directive of 22 July 1980 on summertime arrangements (80/737/EEC)
#
# The first of the European Directives on Summer Time. It specified start
# dates for 1981 and 1982. No agreement had been reached on end dates.
# Only dates were given, there was no rule like `last Sunday in March'.
# The main change for the United Kingdom was a move to a 01:00 GMT change
# time. The dates:
# 1981: 29 March
# 1982: 28 March
#
# - Summer Time Order, 1980 (S.I. 1980/1089)
#
# Specified dates for 1981 and 1982, with the start dates as in the
# EC Directive and all times 01:00 GMT:
# 1981: 29 March to 25 October
# 1982: 28 March to 24 October
#
# - Second Council Directive of 10 June 1982 on summertime arrangements
# (82/399/EEC)
#
# The next European Directive. Specified dates for three years, 1983 to 1985.
# Agreement still hadn't been reached on a common end date, and wouldn't
# be until 1994 with the appeareance of the seventh Directive with a common
# date for 1996 and beyond, but this time the Directive gave two sets of
# end dates. The start date was specified by rule: the last Sunday in March.
# All times were 01:00 GMT. The end dates were given without rule, as:
# 1983: 25 September or 23 October
# 1984: 30 September or 28 october
# 1985: 29 September or 27 October
#
# - Summer Time Order, 1982 (S.I. 1982/1673)
#
# Implemented the second EC Directive, using the October end dates.
# 1983: 27 March to 23 October
# 1984: 25 March to 28 october
# 1985: 31 March to 27 October
#
# - Third Council Directive of 12 December 1984 on summertime arrangements
# (84/634/EEC)
#
# Specified start dates of the last Sunday in March and two sets of end
# dates, last Sunday in September and fourth Sunday in October, all at
# 01:00 GMT. The end dates were also specified as dates:
# 1986: 28 September or 26 October
# 1987: 27 September or 25 October
# 1988: 25 September or 23 October
#
# - Summer Time Order, 1986 (S.I. 1986/223)
#
# Implemented the third EC Directive, using the October end dates.
# 1986: 30 March to 26 October
# 1987: 29 March to 25 October
# 1988: 27 March to 23 October
#
# - Council Directive of 20 December 1985 amending Directive 84/634/EEC
# on summertime arrangements (85/582/EEC)
#
# This was to do with the accession of Spain and Portugal to the EEC.
# The previous directve had used wording like `Member States belonging
# to the zero (Greenwich) time zone' when refering to the different
# sets of end dates. Portugal was in that time zone but was not going
# to follow the United Kingdom and Ireland dates, so the text was reworded
# without any change to the dates themselves.
#
# - Fourth Council Directive of 22 December 1987 on summertime arrangements
# (88/14/EEC)
#
# This Directive covered only a single year: 1989. My guess is that
# this was because 1989 was one of the years when the historic United Kingdom
# end date of the Sunday after the fourth Saturday in October differed from
# the rule in the previous Directive of the fourth Sunday in October.
# All times are 01:00 GMT. No rule was specified, specific dates were given:
# 1989: 26 March to 24 September or 29 October
#
# - Summer Time Order, 1988 (S.I. 1988/931)
#
# Implemented the dates of 26 March to 29 October for 1989.
#
# - Fifth Council Directive of 21 December 1988 on summertime arrangements
# (89/47/EEC)
#
# Covered the three years 1990 to 1992. All times are 01:00 GMT. Gave both
# rules (last Sunday in March, last Sunday in September or fourth Sunday
# in October) and specific dates:
# 1990: 25 March to 30 September or 28 October
# 1991: 31 March to 29 September or 27 October
# 1992: 29 March to 27 September or 25 October
#
# - Summer Time Order, 1989 (S.I. 1989/985)
#
# Implemented the fifth Directive using the October end dates.
#
# - Sixth Council Directive 92/20/EEC of 26 March 1992 on summertime
# arrangements
#
# Covered the two years 1993 and 1994. All times are 01:00 GMT. Specified
# both rules (same as the fifth Directive) and specific dates:
# 1993: 28 March to 26 September or 24 October
# 1994: 27 March to 25 September or 23 October
#
# - Summer Time Order, 1992 (S.I. 1992/1729)
#
# Implemented the sixth Directive using the October end dates.
#
# - Seventh Directive 94/21/EC of the European Parliament and of the Council
# of 30 May 1994 on summer-time arrangements
#
# Covered the three years 1995 to 1997. Agreement had finally been reached
# on a common end date, to start in 1996. Both rules and dates were given.
# The rules were the same last Sunday in March to last Sunday in September
# or fourth Sunday in October for 1995, with the end rule changing to the
# last Sunday in October for 1996 and 1997. The year 1995 was another of
# the tricky ones where the EC and traditional United Kingdom rules differed
# but this time the UK changed on the fourth Sunday, 22 October, earlier
# than usual. All times are 01:00 GMT. Specific dates were also given:
# 1995: 26 March to 24 September or 22 October
# 1996: 31 March to 27 October
# 1997: 30 March to 26 October
#
# - Summer Time Order 1994 (S.I. 1994/2798)
#
# Implements the seventh Directive using the October end date in 1995.
# Applies also to the Bailiwick of Guernsey but not to the Bailiwick of
# Jersey or the Isle of Man, which have their own (unspecified) legislation
# on the subject.
#
# - Eighth Directive 97/44/EC of the European Parliament and of the Council
# of 22 July 1997 on summer-time arrangements
#
# Covers four years: 1998 to 2001. All times are 01:00 GMT. Specifies both
# rules, last Sunday in March and last Sunday in October, and specific dates:
# 1998: 29 March to 25 October
# 1999: 28 March to 31 October
# 2000: 26 March to 29 October
# 2001: 25 March to 28 October
#
# <a href="http://www.hmso.gov.uk/si/si1997/97298201.htm">
# - Summer Time Order 1997 (S.I. 1997/2982)
# </a>
#
# Implements the eighth Directive. Has the same text about the Isle of Man,
# Guernsey and Jersey as the 1994 Order.
# Peter Ilieve <peter@aldie.co.uk> (1998-04-19) described at length
# the history of summer time legislation in the United Kingdom.
# Since 1998 Joseph S. Myers <jsm28@cam.ac.uk> has been updating
# and extending this list, which can be found in
# <a href="http://student.cusu.cam.ac.uk/~jsm28/british-time/">
# History of legal time in Britain
# </a> (2000-02-12).
# From Joseph S. Myers (1999-09-02):
# I today found the 1916 summer time orders for the Channel Islands in
# the Public Record Office (HO 45/10811/312364).... Alderney,
# Jersey and Guernsey all enacted summer time for 1916 (and the
# enactment for the Isle of Man is already noted). This doesn't
# complete the resolution of timekeeping in the Channel Islands, since
# 1917-1921 need to be resolved for the Channel Islands, and it isn't
# clear whether the islands were using GMT or local time then. The
# changes in Alderney and Guernsey were at the same 2am GMT time as
# for Great Britain; the order for Jersey is more interesting.
#
# From Paul Eggert (1999-10-22):
# Mark Brader kindly translated the 1916 Jersey order from the French.
# It says that the 1916 transitions were 05-20 and 09-30 at midnight.
# No doubt this was 24:00, two or three hours earlier than Great Britain.
# It also says that after 1916 they'll sync with Great Britain.
# From Joseph S. Myers (1999-09-28):
# I have the 1918 orders for Guernsey, Alderney (both changing on same
# dates as UK, 2am GMT) and Sark (same dates; start and end at 2am,
# start "temps de Greenwich" (not specified as "temps moyen de
# Greenwich" which was used in the other orders) and end in an
# unspecified zone). For Jersey the same file (Public Record Office: HO
# 45/10892/357138) includes letters to the effect that in 1918 and 1919
# the States of Jersey agreed the same start and end dates as the UK
# (times unspecified, and it was the 1916 Jersey order that specified
# change at midnight of an unspecified zone).
# From Joseph S. Myers <jsm28@hermes.cam.ac.uk> (1998-01-06):
# From Joseph S. Myers <jsm28@cam.ac.uk> (1998-01-06):
#
# The legal time in the UK outside of summer time is definitely GMT, not UTC;
# see Lord Tanlaw's speech
@ -749,19 +178,11 @@
# (Lords Hansard 11 June 1997 columns 964 to 976)
# </a>.
# From Paul Eggert (1999-09-20):
# From Paul Eggert (2000-02-17):
#
# The date `20 April 1924' in the table of ``Summer Time: A
# Consultation Document'' (Cm 722, 1989) table is a transcription error;
# 20 April was an Easter Sunday. Shanks has 13 April, the correct date.
# Also, the table is not quite right for 1925 through 1938; the correct rules
# (which Shanks uses) are given in the Summer Time Acts of 1922 and 1925.
# Shanks and the UK Government paper disagree about the Apr 1956 transition;
# since we have no other data, and since Shanks was correct in the other
# points of disagreement about London, we'll believe Shanks for now.
# Also, for lack of other data, we'll follow Shanks for Eire in 1940-1948.
# For lack of other data, we'll follow Shanks for Eire in 1940-1948.
#
# Given Peter Ilieve's comments, the following claims by Shanks are incorrect:
# Given Ilieve and Myers's data, the following claims by Shanks are incorrect:
# * Wales did not switch from GMT to daylight saving time until
# 1921 Apr 3, when they began to conform with the rest of Great Britain.
# Actually, Wales was identical after 1880.
@ -830,8 +251,8 @@ Rule GB-Eire 1921 only - Apr 3 2:00s 1:00 BST
Rule GB-Eire 1921 only - Oct 3 2:00s 0 GMT
# S.R.&O. 1922, No. 264
Rule GB-Eire 1922 only - Mar 26 2:00s 1:00 BST
# The Summer Time Act, 1922
Rule GB-Eire 1922 only - Oct 8 2:00s 0 GMT
# The Summer Time Act, 1922
Rule GB-Eire 1923 only - Apr Sun>=16 2:00s 1:00 BST
Rule GB-Eire 1923 1924 - Sep Sun>=16 2:00s 0 GMT
Rule GB-Eire 1924 only - Apr Sun>=9 2:00s 1:00 BST
@ -1326,6 +747,11 @@ Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik
# for all member states until 2001. Brussels has yet to decide what to do
# after that.
# From Mart Oruaas (2000-01-29):
# Regulation no. 301 (1999-10-12) obsoletes previous regulation
# no. 206 (1998-09-22) and thus sticks Estonia to +02:00 GMT for all
# the year round. The regulation is effective 1999-11-01.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Europe/Tallinn 1:39:00 - LMT 1880
1:39:00 - TMT 1918 Feb # Tallinn Mean Time
@ -1337,7 +763,7 @@ Zone Europe/Tallinn 1:39:00 - LMT 1880
3:00 Russia MSK/MSD 1989 Mar 26 2:00s
2:00 1:00 EEST 1989 Sep 24 2:00s
2:00 C-Eur EE%sT 1998 Sep 22
2:00 EU EE%sT 2000
2:00 EU EE%sT 1999 Nov 1
2:00 - EET
# Finland

32
share/zoneinfo/northamerica
View File

@ -1,4 +1,4 @@
# @(#)northamerica 7.49
# @(#)northamerica 7.50
# also includes Central America and the Caribbean
# This data is by no means authoritative; if you think you know better,
@ -952,6 +952,14 @@ Zone America/Dawson_Creek -8:00:56 - LMT 1884
# their senses", but the locals evidently don't see any problem with
# the current state of affairs.
# From Michaela Rodrigue, writing in the
# <a href="http://www.nunatsiaq.com/archives/nunavut991130/nvt91119_17.html">
# Nunatsiaq News (1999-11-19)</a>:
# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones,
# central - or Nunavut time - for government offices, and eastern time
# for municipal offices and schools.... Igloolik [was similar but then]
# made the switch to central time on Saturday, Nov. 6.
# 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
@ -1079,6 +1087,12 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
# The State of Quintana Roo has reverted back to central STD and DST times
# (i.e. UTC -0600 and -0500 as of 1998-08-02).
# From Rives McDow (2000-01-10):
# Effective April 4, 1999 at 2:00 AM local time, Sonora changed to the time
# zone 5 hours from the International Date Line, and will not observe daylight
# savings time so as to stay on the same time zone as the southern part of
# Arizona year round.
# From Shanks:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mexico 1939 only - Feb 5 0:00 1:00 D
@ -1120,7 +1134,19 @@ Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40
-6:00 Mexico C%sT 1998
-6:00 - CST 1998 Apr Sun>=1 3:00
-7:00 Mexico M%sT
# S Baja California, Nayarit, Sinaloa, Sonora
# Sonora
Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
-6:00 - CST 1931 Oct
-7:00 - MST 1932 Mar 30 23:00
-6:00 - CST 1942 Apr
-7:00 - MST 1949 Jan 14
-8:00 - PST 1970
-7:00 Mexico M%sT 1999
-7:00 - MST
# S Baja California, Nayarit, Sinaloa
Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
@ -1261,7 +1287,7 @@ Rule Cuba 1996 only - Oct 6 0:00s 0 S
Rule Cuba 1997 only - Oct 12 0:00s 0 S
Rule Cuba 1998 1999 - Mar lastSun 0:00s 1:00 D
Rule Cuba 1998 max - Oct lastSun 0:00s 0 S
Rule Cuba 2000 max - Apr 1 0:00s 1:00 D
Rule Cuba 2000 max - Apr Sun>=1 0:00s 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Havana -5:29:28 - LMT 1890

50
share/zoneinfo/southamerica
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@ -1,4 +1,4 @@
# @(#)southamerica 7.33
# @(#)southamerica 7.34
# 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
@ -80,12 +80,12 @@ Rule Arg 1963 only - Dec 15 0:00 1:00 S
Rule Arg 1964 1966 - Mar 1 0:00 0 -
Rule Arg 1964 1966 - Oct 15 0:00 1:00 S
Rule Arg 1967 only - Apr 1 0:00 0 -
Rule Arg 1967 1968 - Oct Sun<=7 0:00 1:00 S
Rule Arg 1968 1969 - Apr Sun<=7 0:00 0 -
Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S
Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 -
Rule Arg 1974 only - Jan 23 0:00 1:00 S
Rule Arg 1974 only - May 1 0:00 0 -
Rule Arg 1974 1976 - Oct Sun<=7 0:00 1:00 S
Rule Arg 1975 1977 - Apr Sun<=7 0:00 0 -
Rule Arg 1974 1976 - Oct Sun>=1 0:00 1:00 S
Rule Arg 1975 1977 - Apr Sun>=1 0:00 0 -
Rule Arg 1985 only - Nov 2 0:00 1:00 S
Rule Arg 1986 only - Mar 14 0:00 0 -
Rule Arg 1986 1987 - Oct 25 0:00 1:00 S
@ -108,6 +108,15 @@ Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
# time corrections was derogated and no more modifications
# to the time zones (for daylight saving) are now made.
#
# From Rives McDow (2000-01-10):
# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
# which did not result in the switch of a time zone, as they stayed 9 hours
# from the International Date Line. On March 5, 2000, at 0:00 local time,
# Argentina will come off daylight savings time, which will bring them to 8
# hours from the International Date Line.
Rule Arg 1999 max - Oct Sun>=1 0:00 1:00 S
Rule Arg 2000 max - Mar Sun>=1 0:00 0 -
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#
# Buenos Aires (BA), Distrito Federal (DF), Santa Cruz (SC),
@ -115,26 +124,29 @@ Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
Zone America/Buenos_Aires -3:53:48 - LMT 1894 Nov
-4:16:44 - CMT 1920 May # Cordoba Mean Time
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT 1999 Oct 3 0:00
-4:00 Arg AR%sT
#
# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
# Formosa (FM), La Pampa (LP), Chubut (CH)
Zone America/Rosario -4:02:40 - LMT 1894 Nov
-4:16:44 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT 1991 Jul
-3:00 - ART
-3:00 - ART 1999 Oct 3 0:00
-4:00 Arg AR%sT
#
# Cordoba (CB), Santiago del Estero (SE), Salta (SA), Tucuman (TM), La Rioja (LR), San Juan (SJ), San Luis (SL),
# Neuquen (NQ), Rio Negro (RN)
Zone America/Cordoba -4:16:44 - LMT 1894 Nov
-4:16:44 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT 1990 Jul
-3:00 - ART
-3:00 - ART 1999 Oct 3 0:00
-4:00 Arg AR%sT
#
# Jujuy (JY)
Zone America/Jujuy -4:21:12 - LMT 1894 Nov
@ -145,17 +157,19 @@ Zone America/Jujuy -4:21:12 - LMT 1894 Nov
-4:00 - WART 1991 Oct 6
-4:00 1:00 WARST 1992 Mar 15
-4:00 - WART 1992 Oct 18
-3:00 - ART
-3:00 - ART 1999 Oct 3 0:00
-4:00 Arg AR%sT
#
# Catamarca (CT)
Zone America/Catamarca -4:23:08 - LMT 1894 Nov
-4:16:44 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT 1990 Jul
-3:00 - ART 1991 Jul
-3:00 Arg AR%sT 1992 Jul
-3:00 - ART
-3:00 - ART 1999 Oct 3 0:00
-4:00 Arg AR%sT
#
# Mendoza (MZ)
Zone America/Mendoza -4:35:16 - LMT 1894 Nov
@ -166,7 +180,8 @@ Zone America/Mendoza -4:35:16 - LMT 1894 Nov
-4:00 - WART 1991 Oct 15
-4:00 1:00 WARST 1992 Mar 1
-4:00 - WART 1992 Oct 18
-3:00 - ART
-3:00 - ART 1999 Oct 3 0:00
-4:00 Arg AR%sT
# Aruba
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@ -411,7 +426,7 @@ Zone America/Porto_Acre -4:31:12 - LMT 1914
-5:00 Brazil AC%sT 1988 Sep 12
-5:00 - ACT
#
# Martin Vaz and Trinidade are like America/Noronha.
# Martin Vaz and Trindade are like America/Noronha.
# Chile
@ -545,7 +560,8 @@ Rule Para 1996 only - Mar 1 0:00 0 -
Rule Para 1997 only - Feb lastSun 0:00 0 -
Rule Para 1998 only - Mar 1 0:00 0 -
Rule Para 1996 max - Oct Sun>=1 0:00 1:00 S
# IATA SSIM (1999-02) says lastSat, not lastSun; go with Shanks.
# IATA SSIM (1999-02) says lastSat, not lastSun; (1999-09) reports no date;
# go with Shanks.
Rule Para 1999 max - Feb lastSun 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Asuncion -3:50:40 - LMT 1890

8
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@ -1,4 +1,4 @@
# @(#)zone.tab 1.17
# @(#)zone.tab 1.18
#
# TZ zone descriptions
#
@ -234,7 +234,8 @@ MK +4159+02126 Europe/Skopje
ML +1239-00800 Africa/Bamako southwest Mali
ML +1446-00301 Africa/Timbuktu northeast Mali
MM +1647+09610 Asia/Rangoon
MN +4755+10653 Asia/Ulan_Bator
MN +4755+10653 Asia/Ulaanbaatar most locations
MN +4801+09139 Asia/Hovd Bayan-Olgiy, Hovd, Uvs
MO +2214+11335 Asia/Macao
MP +1512+14545 Pacific/Saipan
MQ +1436-06105 America/Martinique
@ -246,8 +247,9 @@ MV +0410+07330 Indian/Maldives
MW -1547+03500 Africa/Blantyre
MX +1924-09909 America/Mexico_City Central Time - most locations
MX +2105-08646 America/Cancun Central Time - Quintana Roo
MX +2313-10625 America/Mazatlan Mountain Time - most locations
MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa
MX +2838-10605 America/Chihuahua Mountain Time - Chihuahua
MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora
MX +3232-11701 America/Tijuana Pacific Time
MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia
MY +0133+11020 Asia/Kuching Sabah & Sarawak