Argentina DST blues

Mariano Absatz - El Baby baby at
Thu Oct 16 16:22:21 UTC 2008

Clint Adams escribió el 16/10/08 10:36:
> On Thu, Oct 16, 2008 at 01:36:37PM +0200, Petr Machata wrote:
>> I'm eyeing the sources, and is seems to me that we need to split  
>> America/Argentina/Catamarca in two, one for Catamarca (which doesn't  
>> plan to introduce the DST), and one for Chubut (which does).  The most  
>> populous city in Chubut, per wikipedia, is Comodoro Rivadavia, "often  
>> referred simply as Comodoro", hence the zone would be  
>> America/Argentina/Comodoro.
> There is already America/Argentina/ComodRivadavia; you might want to use
> that.
Mmmhhh America/Argentina/ComodRivadavia is a link in the backward 
file... and I don't like either the contraction "ComodRivadavia" or 
"Comodoro" which is a generic naval rank (as would be "Real Admiral")... 
I think America/Argentina/Comodoro_Rivadavia would be a better choice 
(in the same line as America/Argentina/Buenos_Aires... and we could 
change the link entry in backward to point to it...

Here's a patch (against 2008h) which does what I say...

One historical question... I find that all cities, up until 1894-10-31 
refer to LMT (Lima Mean Time?)... but all have different offsets... 
after that and up until May 1920, all refer to CMT (Córdoba Mean Time) 
at a fixed -4:16:48 offset.

Which is the source for the LMT offsets?... 'cause I'm happily copying 
and pasting and for sure introducing errors in the past... not that I'm 
afraid of the butterfly effect, but I'd rather not introduce wronful data...


Mariano Absatz - "El Baby"
baby at

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        talking about the irreversability
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