Please note that this document is for reference only we do not take any responsible for any data lost.
Some tome you want to change Timezone in VOS3000 after VOS3000 installation For Example I want to change my Time zone to Asia/Shanghai
easy way to change time zone on centos run the system command
and select your timezone
click OK and reboot the server.
if system-config-date command is not working then install this tool
# yum install system-config-date
Manualy to do this, follow these steps.
Reinstall Timezone database
# yum reinstall tzdata
If tadata not installed then
# yum install tzdata
Install NTP Client to accurate time according to time zone
# yum -y install ntp
# chkconfig ntpd on
# service ntpd restart
Remove localtime current file
# rm -f /etc/localtime
Link Timezone file with /etc/localtime you can find your timezone file in /usr/share/zoneinfo/
# ln -s /usr/share/zoneinfo/Asia/Manila /etc/localtime
Run tzselect command and select your timezone and note your timezone
for example Asia/Manila
Edit /etc/sysconfig/clock file and change with your Timezone
# nano /etc/sysconfig/clock
Reboot the server Wait for few minutes check your time has synchronized with NTP server it will show slimier to below
synchronized to NTP server (126.96.36.199) at stratum 2 time correct to within 31 ms polling server every 64 s
check time and timezone
check your hardware clock
Important TIP Editing Timezone on /etc/sysconfig/clock is very important If you will not update this file VOS3000 client will not show your timezone changes in VOS3000 client.