-# @(#)asia 7.73
+# @(#)asia 7.77
# 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
# Instead of putting back clocks at the end of October, Georgia
# will stay on daylight savings time this winter to save energy,
# President Eduard Shevardnadze decreed Wednesday.
+#
+# From the BBC via Joseph S. Myers (2004-06-27):
+#
+# Georgia moved closer to Western Europe on Sunday... The former Soviet
+# republic has changed its time zone back to that of Moscow. As a result it
+# is now just four hours ahead of Greenwich Mean Time, rather than five hours
+# ahead. The switch was decreed by the pro-Western president of Georgia,
+# Mikhail Saakashvili, who said the change was partly prompted by the process
+# of integration into Europe.
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tbilisi 2:59:16 - LMT 1880
2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
3:00 E-EurAsia GE%sT 1994 Sep lastSun
4:00 E-EurAsia GE%sT 1996 Oct lastSun
4:00 1:00 GEST 1997 Mar lastSun
- 4:00 E-EurAsia GE%sT
+ 4:00 E-EurAsia GE%sT 2004 Jun 27
+ 3:00 RussiaAsia GE%sT
# East Timor
# India
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Asia/Calcutta 5:53:28 - LMT 1880
+Zone Asia/Calcutta 5:53:28 - LMT 1880 # Kolkata
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - BURT 1942 May 15 # Burma Time
5:30 - IST 1942 Sep
# direction is expected until the latter part of 2004 which is a long
# time off in terms of Israeli politics.
+# (2004-09-20):
+# The latest rumour, however, is that in 2005, when the clock changes to
+# Daylight Saving Time (date as yet unknown), the move will be a two-hour leap
+# forward (from UTC+0200 to UTC+0400) and then, in the fall, the clock will
+# move back only an hour to UTC+0300 thus effectively moving Israel's timezone
+# from UTC+0200 to UTC+0300. However, no actual draft has been put before the
+# Knesset (Israel's Parliament) though the intention is to do so this
+# month [2004-09].
+
+# (2004-09-26):
+# Even though the draft law for the above did pass the Ministerial Committee
+# for Legislative Matters three months ago, it was voted down in today's
+# Cabinet meeting. The current suggestion is to keep the current timezone at
+# UTC+0200 but have an extended period of Daylight Saving Time (UTC+0300) from
+# the beginning of Passover holiday in the spring to after the Tabernacle
+# holiday in the fall (i.e. the dates of which are governed by the Hebrew
+# calendar but this means at least 184 days of DST). However, this is only a
+# suggestion that was raised in today's cabinet meeting and has not yet been
+# drafted.
+
###############################################################################
Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
#
# peninsular Malaysia
-# From Paul Eggert (2003-11-01):
# The data here are taken from Mok Ly Yng (2003-10-30)
# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
-# Before 1901, Penang, Malacca and Singapore each had their own time zone;
-# assume Kuala Lumpur used Malaccan time.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Asia/Kuala_Lumpur 6:46:48 - LMT 1880
- 6:49:00 - MMT 1901 Jan 1 # Malacca Mean Time
+Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - MALT 1933 Jan 1 # Malaya Time
- 7:00 0:20 MALST 1936
+ 7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
#
# [The province of Selenge is omitted from the above lists.]
+# From Ganbold Ts., Ulaanbaatar <ganbold@micom.mng.net> (2004-04-17):
+# Daylight saving occurs at 02:00 local time last Saturday of March.
+# It will change back to normal at 02:00 local time last Saturday of
+# September.... As I remember this rule was changed in 2001.
+#
+# From Paul Eggert (2004-04-17):
+# For now, assume Rives McDow's informant got confused about Friday vs
+# Saturday, and that his 2001 dates should have 1 added to them.
+
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
Rule Mongol 1983 only - Oct 1 0:00 0 -
Rule Mongol 1985 1998 - Mar lastSun 2:00s 1:00 S
Rule Mongol 1984 1998 - Sep lastSun 2:00s 0 -
# IATA SSIM (1999-09) says Mongolia no longer observes DST.
-Rule Mongol 2001 only - Apr 27 2:00s 1:00 S
-Rule Mongol 2001 only - Sep 28 2:00s 0 -
+Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
+Rule Mongol 2001 max - Sep lastSat 2:00 0 -
+Rule Mongol 2002 max - Mar lastSat 2:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
# The data here are taken from Mok Ly Yng (2003-10-30)
# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Asia/Singapore 6:55:25 - LMT 1880
+Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - MALT 1933 Jan 1 # Malaya Time
- 7:00 0:20 MALST 1936
+ 7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
-# @(#)southamerica 7.50
+# @(#)southamerica 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
# This kind of things had always been done this way in Argentina.
# We are still -03:00 all year round in all of the country.
#
+# From Mariano Absatz (2004-05-21):
+# Today it was officially published that the Province of Mendoza is changing
+# its timezone this winter... starting tomorrow night....
+# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
+# From Paul Eggert (2004-05-24):
+# It's Law No. 7,210. This change is due to a public power emergency, so for
+# now we'll assume it's for this year only.
#
# From Paul Eggert (2002-01-22):
# <a href="http://www.spicasc.net/horvera.html">
# </a> says that standard time in Argentina from 1894-10-31
# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
# over Shanks.
+#
+# From Mariano Absatz (2004-06-05):
+# These media articles from a major newspaper mostly cover the current state:
+# http://www.lanacion.com.ar/04/05/27/de_604825.asp
+# http://www.lanacion.com.ar/04/05/28/de_605203.asp
+#
+# The following eight (8) provinces pulled clocks back to UTC-04:00 at
+# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
+# Apparently, all nine provinces would go back to UTC-03:00 at the same
+# time in October 17th.
+#
+# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
+# Tierra del Fuego, Tucuman.
+#
+# From Mariano Absatz (2004-06-14):
+# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
+# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
+# annoyance with the change is much higher than the power savings obtained....
+#
+# From Gwillim Law (2004-06-14):
+# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
+# "The time change in Tierra del Fuego was a conflicted decision from
+# the start. The government had decreed that the measure would take
+# effect on June 1, but a normative error forced the new time to begin
+# three days earlier, from a Saturday to a Sunday....
+# Our understanding was that the change was originally scheduled to take place
+# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
+# provinces). Sunday was May 30, only two days earlier. So the article
+# contains a contradiction. I would give more credence to the Saturday/Sunday
+# date than the "three days earlier" phrase, and conclude that Tierra del
+# Fuego set its clocks back at 2004-05-30 00:00.
+#
+# From Steffen Thorsen (2004-10-05):
+# The previous law 7210 which changed the province of Mendoza's time zone
+# back in May have been modified slightly in a new law 7277, which set the
+# new end date to 2004-09-26 (original date was 2004-10-17).
+# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
+#
+# From Mariano Absatz (2004-10-05):
+# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
+# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
+# at midnight between Saturday, July 24th and Sunday, July 25th....
+# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
+# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
+# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
# Unless otherwise specified, data are from Shanks through 1992, from
# the IATA otherwise. As noted below, Shanks says that
-# America/Cordoba split into 7 subregions during 1991/1992, but we
+# America/Cordoba split into 6 subregions during 1991/1992, but we
# haven't verified this yet so for now we'll keep it a single region.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#
-# Buenos Aires (BA), Capital Federal (CF), Santa Cruz (SC),
-# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
-Zone America/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
+# Buenos Aires (BA), Capital Federal (CF),
+Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
-4:16:48 - CMT 1920 May # Cordoba Mean Time
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-3:00 - ART
#
# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
-# Formosa (FM), Salta (SA), Tucuman (TM), Santiago del Estero (SE),
-# Cordoba (CB), La Rioja (LR), San Juan (SJ), San Luis (SL), La Pampa (LP),
-# Neuquen (NQ), Rio Negro (RN), Chubut (CH)
+# Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
+# San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
#
# Shanks also makes the following claims, which we haven't verified:
# - Formosa switched to -3:00 on 1991-01-07.
-# - La Rioja and San Juan switched to -4:00 on 1991-03-01
-# and then to -3:00 on 1991-05-07.
# - Misiones switched to -3:00 on 1990-12-29.
# - Chaco switched to -3:00 on 1991-01-04.
# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
# - Santiago del Estero switched to -4:00 on 1991-04-01,
# then to -3:00 on 1991-04-26.
-# If we need to add Zones for these areas, we may need to have a subdirectory
-# for Argentina, as e.g. "America/San_Luis" is too ambiguious.
#
-Zone America/Cordoba -4:16:48 - LMT 1894 Oct 31
+Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1991 Mar 3
+ -4:00 - WART 1991 Oct 20
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART
+#
+# Tucuman (TM)
+Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
-4:16:48 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-4:00 - WART 1991 Oct 20
-3:00 Arg AR%sT 1999 Oct 3
-4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 Jun 1
+ -4:00 - WART 2004 Jun 13
+ -3:00 - ART
+#
+# La Rioja (LR)
+Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1991 Mar 1
+ -4:00 - WART 1991 May 7
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 Jun 1
+ -4:00 - WART 2004 Jun 20
+ -3:00 - ART
+#
+# San Juan (SJ)
+Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1991 Mar 1
+ -4:00 - WART 1991 May 7
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 May 31
+ -4:00 - WART 2004 Jul 25
-3:00 - ART
#
# Jujuy (JY)
-Zone America/Jujuy -4:21:12 - LMT 1894 Oct 31
+Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
-4:16:48 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-3:00 - ART
#
# Catamarca (CT)
-Zone America/Catamarca -4:23:08 - LMT 1894 Oct 31
+Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
-4:16:48 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-4:00 - WART 1991 Oct 20
-3:00 Arg AR%sT 1999 Oct 3
-4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 Jun 1
+ -4:00 - WART 2004 Jun 20
-3:00 - ART
#
# Mendoza (MZ)
-Zone America/Mendoza -4:35:16 - LMT 1894 Oct 31
+Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
-4:16:48 - CMT 1920 May
-4:00 - ART 1930 Dec
-4:00 Arg AR%sT 1969 Oct 5
-4:00 - WART 1992 Oct 18
-3:00 Arg AR%sT 1999 Oct 3
-4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 May 23
+ -4:00 - WART 2004 Sep 26
+ -3:00 - ART
+#
+# Chubut (CH)
+# The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit.
+Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1991 Mar 3
+ -4:00 - WART 1991 Oct 20
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 Jun 1
+ -4:00 - WART 2004 Jun 20
+ -3:00 - ART
+#
+# Santa Cruz (SC)
+Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May # Cordoba Mean Time
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 Jun 1
+ -4:00 - WART 2004 Jun 20
+ -3:00 - ART
+#
+# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
+Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May # Cordoba Mean Time
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 May 30
+ -4:00 - WART 2004 Jun 20
-3:00 - ART
# Aruba
# the Government decided to postpone DST, instead of changing the Constitution
# (maybe, for the next elections, it will be possible to change the clock)...
+# From Rodrigo Severo (2004-10-04):
+# It's just the biannual change made necessary by the much hyped, supposedly
+# modern Brazilian eletronic voting machines which, apparently, can't deal
+# with a time change between the first and the second rounds of the elections.
+
# From Paul Eggert (2002-10-10):
# The official decrees referenced below are mostly taken from
# <a href="http://pcdsh01.on.br/DecHV.html">
Rule Brazil 1993 only - Jan 31 0:00 0 -
# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
# adopted by same states, plus AM.
-# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22)
-# adopted by same states, minus AM and MT.
+# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
+# web page corrected 2004-01-07) adopted by same states, minus AM.
# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
# adopted by same states, plus MT and TO.
# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
Rule Brazil 2002 only - Nov 3 0:00 1:00 S
# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm"></a>
-Rule Brazil 2003 max - Oct Sun>=15 0:00 1:00 S
+Rule Brazil 2003 only - Oct 19 0:00 1:00 S
+# Decree 5,223 (2004-10-01) reestablishes DST in MT.
+# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm"></a>
+Rule Brazil 2004 only - Nov 2 0:00 1:00 S
# The latest ruleset listed above says that the following states observe DST:
-# DF, ES, GO, MG, MS, PR, RJ, RS, SC, SP.
+# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
#
-# For dates after mid-2004, the above rules with TO="max" are guesses
+Rule Brazil 2005 max - Oct Sun>=15 0:00 1:00 S
+# For dates after mid-2005, the above rules with TO="max" are guesses
# and are quite possibly wrong, but are more likely than no DST at all.
#
# Mato Grosso (MT)
Zone America/Cuiaba -3:44:20 - LMT 1914
- -4:00 Brazil AM%sT 1994 Sep 22
- -4:00 - AMT 1995 Sep 14
-4:00 Brazil AM%sT 2003 Sep 24
- -4:00 - AMT
+ -4:00 - AMT 2004 Oct 4
+ -4:00 Brazil AM%sT
#
# west Para (PA), Rondonia (RO)
# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
Rule Uruguay 1993 only - Feb 28 0:00 0 -
+# From Eduardo Cota (2004-09-20):
+# The uruguayan government has decreed a change in the local time....
+# http://www.presidencia.gub.uy/decretos/2004091502.htm
+Rule Uruguay 2004 only - Sep Sun>=15 0:00 1:00 S
+Rule Uruguay 2005 only - Mar Sun>=8 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
-3:44:44 - MMT 1920 May 1 # Montevideo MT
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