On Feb 29, 2012, at 9:00 AM, tz-request@iana.org wrote:
Thank you so much for the diff. - as you said, we can only hope this change gets formalized before March 11 There is another thread about this ([tz] Updated Proposed time zone package changes (Armenia, Chile, Falklands, Tokelau, Antarctica, Creston(Canada))), according to the contents in that thread an updated timezone package will be released on March 1st 2012
Since Microsoft also seems to be taking this seriously and preparing a hotfix http://blogs.technet.com/b/latam/archive/2012/02/27/chile-dst-2012-fallback.... I am currently assuming that this change is "official", and recommending including it in the March 1 timezone update. Finally, I realized that once again I forgot to do the Antarctica file, so here is an update for that file which patches in all the recent time zone changes over the last few years. Officially, ChileAQ should have the same offset and rules as mainland Chile, but I don't know what is done in actual practice. --- antarctica.orig 2011-09-20 14:55:03.000000000 -0300 +++ antarctica 2012-02-29 10:15:23.000000000 -0300 @@ -43,6 +43,15 @@ Rule ChileAQ 1998 only - Sep 27 4:00u 1:00 S Rule ChileAQ 1999 only - Apr 4 3:00u 0 - -Rule ChileAQ 1999 max - Oct Sun>=9 4:00u 1:00 S -Rule ChileAQ 2000 max - Mar Sun>=9 3:00u 0 - +Rule ChileAQ 1999 2010 - Oct Sun>=9 4:00u 1:00 S +Rule ChileAQ 2011 only - Aug Sun>=16 4:00u 1:00 S +Rule ChileAQ 2012 only - Sep 2 4:00u 1:00 S +Rule ChileAQ 2013 max - Oct Sun>=9 4:00u 1:00 S +Rule ChileAQ 2000 2007 - Mar Sun>=9 3:00u 0 - +Rule ChileAQ 2008 only - Mar 30 3:00u 0 - +Rule ChileAQ 2009 only - Mar Sun>=9 3:00u 0 - +Rule ChileAQ 2010 only - Apr Sun>=1 3:00u 0 - +Rule ChileAQ 2011 only - May Sun>=2 3:00u 0 - +Rule ChileAQ 2012 only - Apr 29 3:00u 0 - +Rule ChileAQ 2013 max - Mar Sun>=9 3:00u 0 - # These rules are stolen from the `australasia' file. -- Glenn Eychaner (geychaner@lco.cl) Telescope Systems Programmer, Las Campanas Observatory