Change timezone in Linux

1. Check the current time. Login as root and execute the date command: # date
2. Backup your current localtime file: cp /etc/localtime /etc/localtime.bak
3. Create a symbolic link to the appropriate timezone from /etc/localtime: ln -sf /usr/share/zoneinfo/America/Los_Angeles /etc/localtime
4. Set the ZONE entry in the file /etc/sysconfig/clock (ex. “America/Los_Angeles”)
5. Set the hardware clock by executing: /sbin/hwclock –systohc
6. Or if you have ntp installed you can set the clock with ntpdate command: ntpdate -b time.nist.gov