proposed tzdata fixes for Brazil, Argentina, Israel

Paul Eggert eggert at CS.UCLA.EDU
Wed Oct 6 23:24:24 UTC 2004


Since the tz database is incorrect for some current time stamps in
Argentina and Brazil, it's time for another update.  Here's a proposed
patch to implement the following changes:

 * Brazil has changed the DST start-date due to problems with its
   election software, and Mato Grosso will observe DST this year.
   (Thanks to Paulo Alexandre Pinto Pires and Rodrigo Severo
   for this info.)

 * Mendoza, Argentina is now back at -0300 (effective Sept 26).
   (Thanks to Steffen Thorsen for this info.)

 * San Juan, Argentina changed back to -0300 on July 25, and its
   transition date to -0400 was May 31, not June 1.
   (Thanks to Mariano Absatz for this info.)

The following change affects commentary only:

 * Israel's Cabinet has discussed new DST rules but no decision has been
   reached yet.  (Thanks to Ephraim Silverberg for this info.)


===================================================================
RCS file: RCS/southamerica,v
retrieving revision 2004.4
retrieving revision 2004.4.0.1
diff -pu -r2004.4 -r2004.4.0.1
--- southamerica	2004/09/22 12:27:29	2004.4
+++ southamerica	2004/10/06 23:16:13	2004.4.0.1
@@ -186,6 +186,20 @@ Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
 # 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
@@ -261,8 +275,8 @@ Zone America/Argentina/San_Juan -4:34:04
 			-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 Oct 17
+			-3:00	-	ART	2004 May 31
+			-4:00	-	WART	2004 Jul 25
 			-3:00	-	ART
 #
 # Jujuy (JY)
@@ -306,7 +320,7 @@ Zone America/Argentina/Mendoza -4:35:16 
 			-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 Oct 17
+			-4:00	-	WART	2004 Sep 26
 			-3:00	-	ART
 #
 # Chubut (CH)
@@ -420,6 +434,11 @@ Zone	America/La_Paz	-4:32:36 -	LMT	1890
 # 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">
@@ -556,11 +575,15 @@ Rule	Brazil	2001	max	-	Feb	Sun>=15	 0:00
 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.
 
 
@@ -648,7 +671,8 @@ Zone America/Campo_Grande -3:38:28 -	LMT
 # Mato Grosso (MT)
 Zone America/Cuiaba	-3:44:20 -	LMT	1914
 			-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.
===================================================================
RCS file: RCS/asia,v
retrieving revision 2004.4
retrieving revision 2004.4.0.1
diff -pu -r2004.4 -r2004.4.0.1
--- asia	2004/09/22 12:27:29	2004.4
+++ asia	2004/10/06 23:16:13	2004.4.0.1
@@ -639,7 +639,7 @@ 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 at cs.huji.ac.il>
-# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, and 2004-09-20):
+# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17 and 2000-07-25):
 
 # According to the Office of the Secretary General of the Ministry of
 # Interior, there is NO set rule for Daylight-Savings/Standard time changes.
@@ -735,14 +735,6 @@ Rule	Zion	2003	only	-	Oct	 3	1:00	0	S
 Rule	Zion	2004	only	-	Apr	 7	1:00	1:00	D
 Rule	Zion	2004	only	-	Sep	22	1:00	0	S
 
-# 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].
-
 # From Paul Eggert (2000-07-25):
 # Here are guesses for rules after 2004.
 # They are probably wrong, but they are more likely than no DST at all.
@@ -769,6 +761,26 @@ Zone	Asia/Jerusalem	2:20:56 -	LMT	1880
 # 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.
+
 
 
 ###############################################################################



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