[tz] Chilean Government annuounced new date for leaving and entering DST in 2012

[Glenn Eychaner]

On Feb 29, 2012, at 9:00 AM, tz-request at 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.aspx
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 at lco.cl)
Telescope Systems Programmer, Las Campanas Observatory