Timezone Update in Ubuntu 12.04 LTS

Changing Timezone in Ubuntu server.

Step 1: Check

 ahmed@server:~# date
 Thu Jan 29 02:38:55 EST 2015
 ahmed@server:~# more /etc/timezone
 US/Eastern

Step 2: Change Timezone Setting

 ahmed@server:~# dpkg-reconfigure tzdata

 Current default time zone: 'Asia/Kolkata'
 Local time is now:      Thu Jan 29 13:09:54 IST 2015.
 Universal Time is now:  Thu Jan 29 07:39:54 UTC 2015.

 ahmed@server:~# date
 Thu Jan 29 13:09:57 IST 2015
 ahmed@server:~#

Step 3: Also make sure to restart cron service as this will still have the old time.

 ahmed@server:~# service crond restart
 ahmed@server:~# service nginx restart

And we are done.

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