Time and TimeZone change - RHEL6

List NTP servers

       cat /etc/ntp.conf

TimeZones:  Check it at:

         vi /etc/sysconfig/clock

Some RHEL/CentOS versions, /etc/localtime is soft linked to bloody 

       /usr/share/zoneinfo/<ZoneFile>

          For e.g.

           diff /etc/localtime /usr/share/zoneinfo/US/Central or

  

Edit clock file, change time zone as: 

 vi /etc/sysconfig/clock

     # ZONE="Europe/London"
      ZONE="US/Central"

Update time zone with 

    tzdata-updatez


Reference : http://freelinuxtutorials.com/quick-tips-and-tricks/quick-tip-change-timezone-in-linux-in-different-ways/