Brazil DST changes

[Todd C. Miller]

We just got the following bug report from a user in Brazil.  I've
appended a patch at the end but I'm not 100% sure it is correct.

 - todd

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Replied: Mon, 14 Oct 2002 09:08:51 -0600
Replied: "Vitor de Matos Carvalho" <vitor at softinfo.com.br>
Replied: bugs at openbsd.org
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Reply-To: "Vitor de Matos Carvalho" <vitor at softinfo.com.br>
From: "Vitor de Matos Carvalho" <vitor at softinfo.com.br>
To: <bugs at openbsd.org>
Subject: Brazil time zone file sets DST incorrectly
Date: Mon, 14 Oct 2002 07:48:22 -0300
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Delivery-Date: Mon, 14 Oct 2002 04:54:40 -0600

Hi... :)))

Today 13 of October of 2002 OpenBSD and others operational systems, are
started to define this date of today as the beginning of Brazil summer time.
This date is missed, the beginning of Brazil summer time is defined to have
beginning:

>From zero hour of day 3 of November of 2002, until zero hour of day 16 of
February of 2003, it will invigorate the summer hour, in part of the
Brazilian Domestic territory, advanced in sixty minutes in relation to the
legal hour. The states that will be enclosed in summer teams are: States of
the Rio Grande Do Sul, Santa Catarina, Paraná, São Paulo, Rio De Janeiro,
Espirito Santo, Minas Gerais, Goiás, Mato Grosso, Mato Grosso do Sul,
Tocantins, Bahia and in the Federal District

Any doubt can be consulted by the official page of the Presidency of the
Republic.
http://www.planalto.gov.br/ccivil_03/decreto/2002/D4399.htm



 Regards,
 Vitor de Matos Carvalho
 System Network Administrator - Softinfo Network
 FreeBSD - The Power To Serve


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Index: share/zoneinfo/datfiles/southamerica
===================================================================
RCS file: /cvs/src/share/zoneinfo/datfiles/southamerica,v
retrieving revision 1.13
diff -u -r1.13 southamerica
--- share/zoneinfo/datfiles/southamerica	4 Apr 2002 18:51:20 -0000	1.13
+++ share/zoneinfo/datfiles/southamerica	14 Oct 2002 15:06:36 -0000
@@ -426,11 +426,12 @@
 # The latest decree listed above says that the following states observe DST:
 # AL, BA, CE, DF, ES, GO, MA, MG, MS, MT,
 # PB, PE, PI, PR, RJ, RN, RS, SC, SE, SP, TO.
-#
-# For dates after mid-2002, the following rules are guesses
-# and are quite possibly wrong, but are more likely than no DST at all.
-Rule	Brazil	2000	max	-	Oct	Sun>=8	 0:00	1:00	S
-Rule	Brazil	2001	max	-	Feb	Sun>=15	 0:00	0	-
+Rule	Brazil	2000	2001	-	Oct	Sun>=8	 0:00	1:00	S
+Rule	Brazil	2001	2002	-	Feb	Sun>=15	 0:00	0	-
+# Decree <a href="http://www.planalto.gov.br/ccivil_03/decreto/2002/D4399.htm">4,399</a> (2002-02-10)
+# changes DST yet again
+Rule	Brazil	2002	max	-	Nov	3	 0:00	1:00	S
+Rule	Brazil	2001	max	-	Feb	16	 0:00	0	-
 
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]