How to set date/time permanently on Centos/RH/Fedora

First you need to ssh to the server and be root and then do these step by step:

1. Set the date/time following instructions at http://www.cyberciti.biz/faq/howto-set-date-time-from-linux-command-prompt/
# date -s "2 OCT 2006 18:00:00"

2. Set the proper Timezone for your area, see http://www.cyberciti.biz/faq/howto-linux-unix-change-setup-timezone-tz-variable/
# cd /etc
# ln -sf /usr/share/zoneinfo/EST localtime

3. Set it to the BIOS for permanent stamp, see http://linux.about.com/library/cmd/blcmdl8_hwclock.htm
# /sbin/hwclock --systohc

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