QUOTE
Originally posted by plague
Apparently my system does not have ntpdate.
I am running an Ensim, Red Hat 7.2 server, which one of the xntp .rpms do I download?
You may already have rdate, in which case you don't need to download anything. Try to do this as root:
rdate -s ntp.nasa.gov
Since the hardware clock always seems to be wrong on my system after a reboot, I added this to my /etc/rc.local file to ensure the time is correctly set at boot.