proposed time zone packages for Argentina in general and San Juan in particular

[Mariano Absatz - El Baby]

Arthur David Olson escribió el 21/10/09 10:19:
> Below you'll find proposed changes to the "southamerica" for Argentina;
> most of Argentina is not using DST in 2009-2010, but San Juan is.
>
> If no problems are found, the ftp package will be updated on 2009-10-26.
>   
<SNIP>
>
> ***************
> *** 560,565 ****
> --- 569,578 ----
>   			-3:00	-	ART
>   #
>   # San Luis (SL)
> + 
> + Rule	SanLuis	2008	max	-	Mar	Sun>=8	0:00	0	-
> + Rule	SanLuis	2008	max	-	Oct	Sun>=8	0:00	1:00	S
> + 
>   Zone America/Argentina/San_Luis -4:25:24 - LMT	1894 Oct 31
>   			-4:16:48 -	CMT	1920 May
>   			-4:00	-	ART	1930 Dec
> ***************
> *** 574,581 ****
>   			-3:00	-	ART	2004 May 31
>   			-4:00	-	WART	2004 Jul 25
>   			-3:00	Arg	AR%sT	2008 Jan 21
> ! 			-3:00	-	ART	2009 Mar 15
> ! 			-4:00	Arg	WAR%sT
>   
Re. the subject: The changes affect San Luis and NOT San Juan (the data 
file does refer to San Luis).


Besides that, I found an error in the SanLuis rules... they should read:
Rule    SanLuis    2008    max    -    Mar    Sun>=8    0:00    0    -
Rule    SanLuis    2007    max    -    Oct    Sun>=8    0:00    1:00    S

that is, the "second Sunday of October" rule must start in 2007 rather 
than 2008, otherwise, the moment the rules come into action (Jan 21, 
2008) DST (for WART) is not observed.

I'm enclosing a patch to tzdata2009o with the correction made (only the 
rules, I didn't edit the comments).

-- 
Mariano Absatz - "El Baby"
baby at baby.com.ar
www.clueless.com.ar


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