Update time zone data files to tzdata release 2008c (DST law changes in

Morocco, Iraq, Choibalsan, Pakistan, Syria, Cuba, Argentina/San_Luis).

src/timezone/data/africa

-# @(#)africa	8.10
+# @(#)africa	8.11
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -400,6 +400,77 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 
 # Morocco
 # See the `europe' file for Spanish Morocco (Africa/Ceuta).
+
+# From Alex Krivenyshev (2008-05-09):
+# Here is an article that Morocco plan to introduce Daylight Saving Time between
+# 1 June, 2008 and 27 September, 2008.
+#
+# "... Morocco is to save energy by adjusting its clock during summer so it will
+# be one hour ahead of GMT between 1 June and 27 September, according to
+# Communication Minister and Gov ernment Spokesman, Khalid Naciri...."
+#
+# <a href="http://www.worldtimezone.net/dst_news/dst_news_morocco01.html">
+# http://www.worldtimezone.net/dst_news/dst_news_morocco01.html
+# </a>
+# OR
+# <a href="http://en.afrik.com/news11892.html">
+# http://en.afrik.com/news11892.html
+# </a>
+
+# From Alex Krivenyshev (2008-05-09):
+# The Morocco time change can be confirmed on Morocco web site Maghreb Arabe Presse:
+# <a href="http://www.map.ma/eng/sections/box3/morocco_shifts_to_da/view">
+# http://www.map.ma/eng/sections/box3/morocco_shifts_to_da/view
+# </a>
+#
+# Morocco shifts to daylight time on June 1st through September 27, Govt.
+# spokesman.
+
+# From Patrice Scattolin (2008-05-09):
+# According to this article:
+# <a href="http://www.avmaroc.com/actualite/heure-dete-comment-a127896.html">
+# http://www.avmaroc.com/actualite/heure-dete-comment-a127896.html
+# </a>
+# (and republished here:
+# <a href="http://www.actu.ma/heure-dete-comment_i127896_0.html">
+# http://www.actu.ma/heure-dete-comment_i127896_0.html
+# </a>
+# )
+# the changes occurs at midnight:
+#
+# saturday night may 31st at midnight (which in french is to be
+# intrepreted as the night between saturday and sunday)
+# sunday night the 28th  at midnight
+#
+# Seeing that the 28th is monday, I am guessing that she intends to say
+# the midnight of the 28th which is the midnight between sunday and
+# monday, which jives with other sources that say that it's inclusive
+# june1st to sept 27th.
+#
+# The decision was taken by decree *2-08-224 *but I can't find the decree
+# published on the web.
+#
+# It's also confirmed here:
+# <a href="http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm ">
+# http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm
+# </a>
+# on a government portal as being  between june 1st and sept 27th (not yet
+# posted in english).
+#
+# The following google query will generate many relevant hits:
+# <a href="http://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search">
+# http://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
+# </a>
+
+# From Alex Krivenyshev (2008-05-09):
+# Is Western Sahara (part which administrated by Morocco) going to follow
+# Morocco DST changes?  Any information?  What about other part of
+# Western Sahara - under administration of POLISARIO Front (also named
+# SADR Saharawi Arab Democratic Republic)?
+
+# From Arthur David Olson (2008-05-09):
+# XXX--guess that it is only Morocco for now; guess only 2008 for now.
+
 # RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Morocco	1939	only	-	Sep	12	 0:00	1:00	S
 Rule	Morocco	1939	only	-	Nov	19	 0:00	0	-
@@ -416,11 +487,13 @@ Rule	Morocco	1976	only	-	Aug	 1	 0:00	0	-
 Rule	Morocco	1977	only	-	Sep	28	 0:00	0	-
 Rule	Morocco	1978	only	-	Jun	 1	 0:00	1:00	S
 Rule	Morocco	1978	only	-	Aug	 4	 0:00	0	-
+Rule	Morocco	2008	only	-	Jun	 1	 0:00	1:00	S
+Rule	Morocco	2008	only	-	Sep	28	 0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
 			 0:00	Morocco	WE%sT	1984 Mar 16
 			 1:00	-	CET	1986
-			 0:00	-	WET
+			 0:00	Morocco	WE%sT
 # Western Sahara
 Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan
 			-1:00	-	WAT	1976 Apr 14

src/timezone/data/asia

-# @(#)asia	8.14
+# @(#)asia	8.20
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -446,13 +446,13 @@ Zone	Asia/Dili	8:22:20 -	LMT	1912
 
 # India
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Calcutta	5:53:28 -	LMT	1880	# Kolkata
+Zone	Asia/Kolkata	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
 			5:30	1:00	IST	1945 Oct 15
 			5:30	-	IST
-# The following are like Asia/Calcutta:
+# The following are like Asia/Kolkata:
 #	Andaman Is
 #	Lakshadweep (Laccadive, Minicoy and Amindivi Is)
 #	Nicobar Is
@@ -660,6 +660,21 @@ Zone	Asia/Tehran	3:25:44	-	LMT	1916
 #
 # So we'll ignore the Economist's claim.
 
+# From Steffen Thorsen (2008-03-10):
+# The cabinet in Iraq abolished DST last week, according to the following
+# news sources (in Arabic):
+# <a href="http://www.aljeeran.net/wesima_articles/news-20080305-98602.html">
+# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
+# </a>
+# <a href="http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10">
+# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
+# </a>
+#
+# We have published a short article in English about the change:
+# <a href="http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html">
+# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
+# </a>
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Iraq	1982	only	-	May	1	0:00	1:00	D
 Rule	Iraq	1982	1984	-	Oct	1	0:00	0	S
@@ -670,8 +685,8 @@ Rule	Iraq	1986	1990	-	Mar	lastSun	1:00s	1:00	D
 # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
 # Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
 #
-Rule	Iraq	1991	max	-	Apr	 1	3:00s	1:00	D
-Rule	Iraq	1991	max	-	Oct	 1	3:00s	0	S
+Rule	Iraq	1991	2007	-	Apr	 1	3:00s	1:00	D
+Rule	Iraq	1991	2007	-	Oct	 1	3:00s	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 			2:57:36	-	BMT	1918	    # Baghdad Mean Time?
@@ -1361,6 +1376,42 @@ Zone	Indian/Maldives	4:54:00 -	LMT	1880	# Male
 # They decided not to adopt daylight-saving time....
 # http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
 
+# From Deborah Goldsmith (2008-03-30):
+# We received a bug report claiming that the tz database UTC offset for
+# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT
+# +08:00 instead. Different sources appear to disagree with the tz
+# database on this, e.g.:
+#
+# <a href="http://www.timeanddate.com/worldclock/city.html?n=1026">
+# http://www.timeanddate.com/worldclock/city.html?n=1026
+# </a>
+# <a href="http://www.worldtimeserver.com/current_time_in_MN.aspx">
+# http://www.worldtimeserver.com/current_time_in_MN.aspx
+# </a>
+#
+# both say GMT+08:00.
+
+# From Steffen Thorsen (2008-03-31):
+# eznis airways, which operates several domestic flights, has a flight
+# schedule here:
+# <a href="http://www.eznis.com/Container.jsp?id=112"
+# http://www.eznis.com/Container.jsp?id=112
+# </a>
+# (click the English flag for English)
+#
+# There it appears that flights between Choibalsan and Ulaanbatar arrive
+# about 1:35 - 1:50 hours later in local clock time, no matter the
+# direction, while Ulaanbaatar-Khvod takes 2 hours in the Eastern
+# direction and 3:35 back, which indicates that Ulaanbatar and Khvod are
+# in different time zones (like we know about), while Choibalsan and
+# Ulaanbatar are in the same time zone (correction needed).
+
+# From Arthur David Olson (2008-05-19):
+# Assume that Choibalsan is indeed offset by 8:00.
+# XXX--in the absence of better information, assume that transition
+# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
+# this is almost surely wrong.
+
 # 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	-
@@ -1396,7 +1447,8 @@ Zone	Asia/Ulaanbaatar 7:07:32 -	LMT	1905 Aug
 Zone	Asia/Choibalsan	7:38:00 -	LMT	1905 Aug
 			7:00	-	ULAT	1978
 			8:00	-	ULAT	1983 Apr
-			9:00	Mongol	CHO%sT	# Choibalsan Time
+			9:00	Mongol	CHO%sT	2008 Mar 31 # Choibalsan Time
+			8:00	Mongol	CHO%sT
 
 # Nepal
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1446,10 +1498,32 @@ Zone	Asia/Muscat	3:54:20 -	LMT	1920
 # The minister told a news conference that the experiment had rather
 # shown 8 per cent higher consumption of electricity.
 
+# From Alex Krivenyshev (2008-05-15):
+# 
+# Here is an article that Pakistan plan to introduce Daylight Saving Time 
+# on June 1, 2008 for 3 months.
+# 
+# "... The federal cabinet on Wednesday announced a new conservation plan to help 
+# reduce load shedding by approving the closure of commercial centres at 9pm and 
+# moving clocks forward by one hour for the next three months. 
+# ...."
+# 
+# <a href="http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html">
+# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html
+# </a>
+# OR
+# <a href="http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4">
+# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
+# </a>
+
+# From Arthur David Olson (2008-05-19):
+# XXX--midnight transitions is a guess; 2008 only is a guess.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule Pakistan	2002	only	-	Apr	Sun>=2	0:01	1:00	S
 Rule Pakistan	2002	only	-	Oct	Sun>=2	0:01	0	-
+Rule Pakistan	2008	only	-	Jun	1	0:00	1:00	S
+Rule Pakistan	2008	only	-	Sep	1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Karachi	4:28:12 -	LMT	1907
 			5:30	-	IST	1942 Sep
@@ -1687,7 +1761,7 @@ Zone	Asia/Singapore	6:55:25 -	LMT	1901 Jan  1
 # kept their clocks set five and a half hours ahead of Greenwich Mean
 # Time (GMT), in line with neighbor India.
 # From Paul Eggert (2006-04-18):
-# People who live in regions under Tamil control can use TZ='Asia/Calcutta',
+# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
 # as that zone has agreed with the Tamil areas since our cutoff date of 1970.
 
 # From K Sethu (2006-04-25):
@@ -1777,9 +1851,7 @@ Rule	Syria	2006	only	-	Sep	22	0:00	0	-
 # From Paul Eggert (2007-03-29):
 # Today the AP reported "Syria will switch to summertime at midnight Thursday."
 # http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
-# For lack of better info, assume the rule changed to "last Friday in March"
-# this year.
-Rule	Syria	2007	max	-	Mar	lastFri	0:00	1:00	S
+Rule	Syria	2007	only	-	Mar	lastFri	0:00	1:00	S
 # From Jesper Norgard (2007-10-27):
 # The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
 # not take place 1.st November at 0:00 o'clock but 1.st November at 24:00 or
@@ -1801,10 +1873,40 @@ Rule	Syria	2007	max	-	Mar	lastFri	0:00	1:00	S
 # Council of Ministers also approved the commencement of work on 
 # identifying the winter time as of Friday, 2/11/2007 where the 60th 
 # minute delay at midnight Thursday 1/11/2007.
-#
-# From Arthur David Olson (2007-10-30):
-# My best guess for the future is first Friday in November.
-Rule	Syria	2007	max	-	Nov	 Fri>=1	0:00	0	-
+Rule	Syria	2007	only	-	Nov	 Fri>=1	0:00	0	-
+
+# From Stephen Colebourne (2008-03-17):
+# For everyone's info, I saw an IATA time zone change for [Syria] for
+# this month (March 2008) in the last day or so...This is the data IATA
+# are now using:
+# Country     Time Standard   --- DST Start ---   --- DST End ---  DST
+# Name        Zone Variation   Time    Date        Time    Date
+# Variation
+# Syrian Arab
+# Republic    SY    +0200      2200  03APR08       2100  30SEP08   +0300
+#                              2200  02APR09       2100  30SEP09   +0300
+#                              2200  01APR10       2100  30SEP10   +0300
+
+# From Arthur David Olson (2008-03-17):
+# Here's a link to English-language coverage by the Syrian Arab News
+# Agency (SANA)...
+# <a href="http://www.sana.sy/eng/21/2008/03/11/165173.htm">
+# http://www.sana.sy/eng/21/2008/03/11/165173.htm
+# </a>...which reads (in part) "The Cabinet approved the suggestion of the
+# Ministry of Electricity to begin daylight savings time on Friday April
+# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
+# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
+# shown above match up with midnight in Syria.
+
+# From Arthur David Olson (2008-03-18):
+# My buest guess at a Syrian rule is "the Friday nearest April 1";
+# coding that involves either using a "Mar Fri>=29" construct that old time zone
+# compilers can't handle  or having multiple Rules (a la Israel).
+# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
+
+Rule	Syria	2008	max	-	Apr	Fri>=1	0:00	1:00	S
+Rule	Syria	2008	max	-	Oct	1	0:00	0	-
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Damascus	2:25:12 -	LMT	1920	# Dimashq
 			2:00	Syria	EE%sT
@@ -1858,13 +1960,13 @@ Zone	Asia/Tashkent	4:37:12 -	LMT	1924 May  2
 
 # Vietnam
 
-# From Paul Eggert (1993-11-18):
-# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
-# We'll stick with the traditional name for now.
+# From Arthur David Olson (2008-03-18):
+# The English-language name of Vietnam's most populous city is "Ho Chi Min City";
+# we use Ho_Chi_Minh below to avoid a name of more than 14 characters.
 
 # From Shanks & Pottenger:
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Saigon	7:06:40 -	LMT	1906 Jun  9
+Zone	Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jun  9
 			7:06:20	-	SMT	1911 Mar 11 0:01 # Saigon MT?
 			7:00	-	ICT	1912 May
 			8:00	-	ICT	1931 May

src/timezone/data/backward

-# @(#)backward	8.4
+# @(#)backward	8.6
 
 # This file provides links between current names for time zones
 # and their old names.  Many names changed in late 1993.
@@ -24,8 +24,10 @@ Link	America/St_Thomas	America/Virgin
 Link	Asia/Ashgabat		Asia/Ashkhabad
 Link	Asia/Chongqing		Asia/Chungking
 Link	Asia/Dhaka		Asia/Dacca
+Link	Asia/Kolkata		Asia/Calcutta
 Link	Asia/Macau		Asia/Macao
 Link	Asia/Jerusalem		Asia/Tel_Aviv
+Link	Asia/Ho_Chi_Minh	Asia/Saigon
 Link	Asia/Thimphu		Asia/Thimbu
 Link	Asia/Makassar		Asia/Ujung_Pandang
 Link	Asia/Ulaanbaatar	Asia/Ulan_Bator

src/timezone/data/northamerica

-# @(#)northamerica	8.20
+# @(#)northamerica	8.23
 # <pre>
 
 # also includes Central America and the Caribbean
@@ -2205,6 +2205,52 @@ Zone America/Costa_Rica	-5:36:20 -	LMT	1890		# San Jose
 # 
 # http://www.worldtimezone.com/dst_news/dst_news_cuba03.html
 
+# From Arthur David Olson (2008-03-09):
+# I'm in Maryland which is now observing United States Eastern Daylight
+# Time. At 9:44 local time I used RealPlayer to listen to
+# <a href="http://media.enet.cu/radioreloj">
+# http://media.enet.cu/radioreloj
+# </a>, a Cuban information station, and heard
+# the time announced as "ocho cuarenta y cuatro" ("eight forty-four"),
+# indicating that Cuba is still on standard time.
+
+# From Steffen Thorsen (2008-03-12):
+# It seems that Cuba will start DST on Sunday, 2007-03-16...
+# It was announced yesterday, according to this source (in Spanish):
+# <a href="http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm">
+# http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm
+# </a>
+#
+# Some more background information is posted here:
+# <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html">
+# http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
+# </a>
+#
+# The article also says that Cuba has been observing DST since 1963,
+# while Shanks (and tzdata) has 1965 as the first date (except in the
+# 1940's). Many other web pages in Cuba also claim that it has been
+# observed since 1963, but with the exception of 1970 - an exception
+# which is not present in tzdata/Shanks. So there is a chance we need to
+# change some historic records as well.
+#
+# One example:
+# <a href="http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm">
+# http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm
+# </a>
+
+# From Jesper Norgaard Welen (2008-03-13):
+# The Cuban time change has just been confirmed on the most authoritative
+# web site, the Granma.  Please check out
+# <a href="http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html">
+# http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html
+# </a>
+#
+# Basically as expected after Steffen Thorsens information, the change
+# will take place midnight between Saturday and Sunday.
+
+# From Arthur David Olson (2008-03-12):
+# Assume Sun>=15 (third Sunday) going forward.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Cuba	1928	only	-	Jun	10	0:00	1:00	D
 Rule	Cuba	1928	only	-	Oct	10	0:00	0	S
@@ -2236,7 +2282,8 @@ Rule	Cuba	1998	1999	-	Mar	lastSun	0:00s	1:00	D
 Rule	Cuba	1998	2003	-	Oct	lastSun	0:00s	0	S
 Rule	Cuba	2000	2006	-	Apr	Sun>=1	0:00s	1:00	D
 Rule	Cuba	2006	max	-	Oct	lastSun	0:00s	0	S
-Rule	Cuba	2007	max	-	Mar	Sun>=8	0:00s	1:00	D
+Rule	Cuba	2007	only	-	Mar	Sun>=8	0:00s	1:00	D
+Rule	Cuba	2008	max	-	Mar	Sun>=15	0:00s	1:00	D
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Havana	-5:29:28 -	LMT	1890

src/timezone/data/southamerica

-# @(#)southamerica	8.18
+# @(#)southamerica	8.19
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -228,6 +228,76 @@ Rule	Arg	2008	max	-	Oct	Sun>=1	0:00	1:00	S
 # http://www.sanjuan.gov.ar/prensa/archivo/000426.html
 # http://www.sanjuan.gov.ar/prensa/archivo/000441.html
 
+# From Alex Krivenyshev (2008-01-17):
+# Here are articles that Argentina Province San Luis is planning to end DST
+# as earlier as upcoming Monday January 21, 2008 or February 2008:
+#
+# Provincia argentina retrasa reloj y marca diferencia con resto del pais
+# (Argentine Province delayed clock and mark difference with the rest of the
+# country)
+# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
+# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
+# </a>
+#
+# Es inminente que en San Luis atrasen una hora los relojes
+# (It is imminent in San Luis clocks one hour delay)
+# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
+# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
+# </a>
+#
+# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
+# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
+# </a>
+
+# From Jesper Norgaard Welen (2008-01-18):
+# The page of the San Luis provincial government
+# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
+# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
+# </a>
+# confirms what Alex Krivenyshev has earlier sent to the tz
+# emailing list about that San Luis plans to return to standard
+# time much earlier than the rest of the country. It also
+# confirms that upon request the provinces San Juan and Mendoza 
+# refused to follow San Luis in this change. 
+# 
+# The change is supposed to take place Monday the 21.st at 0:00
+# hours. As far as I understand it if this goes ahead, we need
+# a new timezone for San Luis (although there are also documented
+# independent changes in the southamerica file of San Luis in
+# 1990 and 1991 which has not been confirmed).
+
+# From Jesper Norgaard Welen (2008-01-25):
+# Unfortunately the below page has become defunct, about the San Luis
+# time change. Perhaps because it now is part of a group of pages "Most
+# important pages of 2008."
+#
+# You can use
+# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
+# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
+# </a>
+# instead it seems. Or use "Buscador" from the main page of the San Luis
+# government, and fill in "huso" and click OK, and you will get 3 pages
+# from which the first one is identical to the above.
+
+# From Mariano Absatz (2008-01-28):
+# I can confirm that the Province of San Luis (and so far only that
+# province) decided to go back to UTC-3 effective midnight Jan 20th 2008
+# (that is, Monday 21st at 0:00 is the time the clocks were delayed back
+# 1 hour), and they intend to keep UTC-3 as their timezone all year round
+# (that is, unless they change their mind any minute now).
+#
+# So we'll have to add yet another city to 'southamerica' (I think San
+# Luis city is the mos populated city in the Province, so it'd be
+# America/Argentina/San_Luis... of course I can't remember if San Luis's
+# history of particular changes goes along with Mendoza or San Juan :-(
+# (I only remember not being able to collect hard facts about San Luis
+# back in 2004, when these provinces changed to UTC-4 for a few days, I
+# mailed them personally and never got an answer).
+
+# From Arthur David Olson (2008-03-15):
+# Until there's better information, asssume San Luis was like San Juan
+# rather than Mendoza (since San Juan has a simpler DST history).
+
 # Unless otherwise specified, data are from Shanks & Pottenger through 1992,
 # from the IATA otherwise.  As noted below, Shanks & Pottenger say that
 # America/Cordoba split into 6 subregions during 1991/1992, but we
@@ -350,6 +420,20 @@ Zone America/Argentina/Mendoza -4:35:16 - LMT	1894 Oct 31
 			-4:00	-	WART	2004 Sep 26
 			-3:00	Arg	AR%sT
 #
+# San Luis (SL)
+Zone America/Argentina/San_Luis -4:25:24 - 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 May 31
+			-4:00	-	WART	2004 Jul 25
+			-3:00	Arg	AR%sT	2008 Jan 21
+			-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

src/timezone/data/zone.tab

-# @(#)zone.tab	8.13
+# @(#)zone.tab	8.16
 #
 # TZ zone descriptions
 #
@@ -42,7 +42,8 @@ AQ	-7824+10654	Antarctica/Vostok	Vostok Station, S Magnetic Pole
 AQ	-6640+14001	Antarctica/DumontDUrville	Dumont-d'Urville Station, Terre Adelie
 AQ	-690022+0393524	Antarctica/Syowa	Syowa Station, E Ongul I
 AR	-3436-05827	America/Argentina/Buenos_Aires	Buenos Aires (BA, CF)
-AR	-3124-06411	America/Argentina/Cordoba	most locations (CB, CC, CN, ER, FM, LP, MN, NQ, RN, SA, SE, SF, SL)
+AR	-3124-06411	America/Argentina/Cordoba	most locations (CB, CC, CN, ER, FM, LP, MN, NQ, RN, SA, SE, SF)
+AR	-3319-06621	America/Argentina/San_Luis	San Luis (SL)
 AR	-2411-06518	America/Argentina/Jujuy	Jujuy (JY)
 AR	-2649-06513	America/Argentina/Tucuman	Tucuman (TM)
 AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT), Chubut (CH)
@@ -209,7 +210,7 @@ ID	-0232+14042	Asia/Jayapura	Irian Jaya & the Moluccas
 IE	+5320-00615	Europe/Dublin
 IL	+3146+03514	Asia/Jerusalem
 IM	+5409-00428	Europe/Isle_of_Man
-IN	+2232+08822	Asia/Calcutta
+IN	+2232+08822	Asia/Kolkata
 IO	-0720+07225	Indian/Chagos
 IQ	+3321+04425	Asia/Baghdad
 IR	+3540+05126	Asia/Tehran
@@ -411,7 +412,7 @@ VC	+1309-06114	America/St_Vincent
 VE	+1030-06656	America/Caracas
 VG	+1827-06437	America/Tortola
 VI	+1821-06456	America/St_Thomas
-VN	+1045+10640	Asia/Saigon
+VN	+1045+10640	Asia/Ho_Chi_Minh
 VU	-1740+16825	Pacific/Efate
 WF	-1318-17610	Pacific/Wallis
 WS	-1350-17144	Pacific/Apia