In order to check which time zone you are following it can be checked with,
date
or it can be checked with
ls -l /etc/localtime
Make a soft link with following command
ln -s /usr/share/zoneinfo/Asia/Kuala_Lumpur /etc/localtime
Edit the following file rc.local with any text editor
vi /etc/rc.d/rc.local
and add the following line
/usr/sbin/ntpdate pool.ntp.org
and then change the file permission to 755
chmod 755 /etc/rc.d/rc.local