Client wrote in today asking me to change the time setting on his computer to IST (India Standard Time). In order to change this, login via SSH and then

cd /etc/

once there, create a link to the following file by running the following command

etc >> ln -sf /usr/share/zoneinfo/Asia/Calcutta localtime

This will now show the correct date and time when the client logs in from India

[root@host.domain.com ~ >> date
Tue Jan 26 16:44:16 IST 2010