Hello,
I believe there might be an error with the definition for 'America/Santiago'.
Actual Behavior
As of March 12, 2013 at 10:30pm UTC the tz database reports 'America/Santiago' to be CLT-0400.
Expected Behavior
>From looking at Wikipedia, WorldTime.com, and TimeAndDate.com, all three agree that 'America/Santiago' should be at CLST-0300 for March 12, 2013 at 10:30pm UTC.
I'm basing this report on the version of the tz database included in the Python library pytz-2012j which was released on 2013-01-03. I have not yet checked the source tz database files. I'm hoping someone on this list can help.
Thanks,
Jonathan