Dave Witt <dwitt(at)movenetworks(dot)com> writes:
> These two queries produce different output, using version 8.3.3:
> SELECT '2008-01-01 00:00:00+00'::timestamptz AT TIME ZONE 'MDT';
> SELECT '2008-01-01 00:00:00+00'::timestamptz AT TIME ZONE 'America/Boise';
Why are you surprised? Boise would've been on MST not MDT on that date.
regards, tom lane