Adam Gordon <adam.gordon@xxxxxxxxxxxxx> writes: > Anyone know where to find info about whether or not the new US DST rules > impact certain versions of Postgres and what needs to be done to ensure > observance of the new rules? Thanks. http://developer.postgresql.org/cvsweb.cgi/pgsql/src/timezone/data/northamerica The short version: Any 7.x PG: uses your OS's timezone info, hence OK if you've updated the OS 8.0.x PG: need 8.0.4 or later 8.1.x PG: all releases know about 2007 US DST updates 8.2.x PG: all releases know about 2007 US DST updates regards, tom lane