Timezone Sync

This is must if machine is part of multi-server setup.

Once-time sync

ntpdate pool.ntp.org

This will sync clock once but quickly. You will see output like:

 8 Apr 19:47:13 ntpdate[30780]: adjust time server offset 0.002989 sec

Automate Sync using NTP Daemon

sudo apt-get install ntp

At this point you can consider job to be finished.

But if you want much better sync, open  /etc/ntp.conf file.

Locate default NTP servers like below:

server 0.ubuntu.pool.ntp.org
server 1.ubuntu.pool.ntp.org
server 2.ubuntu.pool.ntp.org
server 3.ubuntu.pool.ntp.org

And replace them with pool near to your server/machine. You can find nearest pool using – http://support.ntp.org/bin/view/Servers/NTPPoolServers

We have maximum servers in US, so we use:

server 0.us.pool.ntp.org
server 1.us.pool.ntp.org
server 2.us.pool.ntp.org
server 3.us.pool.ntp.org

Finally don’t forget to restart ntp service

service ntp restart