system date != now()

[CSN]

How do I update pg's date? It doesn't appear to have
been updated with DST. I was under the impression that
changing the system's date/time (date -s "...") would
cause pg to use that.
[root@domain data]# date
Sun Apr 11 00:39:07 MDT 2004
[root@domain data]#
[root@domain data]# psql -U admin database1
Welcome to psql 7.4.1, the PostgreSQL interactive
terminal.

database1=> select now();
now
-------------------------------
2004-04-10 23:39:14.048634-07
(1 row)

database1=> select current_time;
timetz
--------------------
23:39:46.202589-07
(1 row)

database1=> select current_date;
date
------------
2004-04-10
(1 row)

database1=> select current_timestamp;
timestamptz
------------------------------
2004-04-10 23:40:10.53221-07
(1 row)

database1=>
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