I have read the timezone hack post, but think this deserves it's own topic so it can be found specifically for the change to daylight savings time. I have two sites working great. Then Daylight savings time comes and my dates are showing Tuesday, "March 10 2009 @ 01:016 PM UTC" at 8:16 AM. Below is my timezone hack in config php. I tried adjusting it a number of ways and no luck. I get KRAT and several other unexpected time zones. I am in the US CST now Daylight saving time I think CDT is the abbreviation. I am sure this is a problem for others.

$_CONF['timezone'] = 'CST/GMT-6';

This works
$_CONF['timezone'] = 'CST6CDT';