How to change Redhat Linux timezone

Our dedicated server is in CST timezone, so we thought of changing the timezone to PST, where we are. Here are the instructions I followed:

#timeconfig

This is a visual way of setting the timezone, but I am not sure if it actually did anything.


So, I tried manual way by following these steps:
#mv /etc/localtime /etc/localtime-old
#ln -sf /usr/share/zoneinfo/US/Pacific /etc/localtime
#rdate -s time.nist.gov

Because of our server firewall, the above step timedout. So I tried the following, which timed out too:
#ntpdate pool.ntp.org

So I set the time manually, and then synced the hardware clock:
#date -s "3:38"
#hwclock --systohc --utc
#hwclock --show