If you wish to explicitly set the time zone for your MySQL running on an Ubuntu Server, here is how to do it.

First open your global MySQL my.cnf configuration file:

sudo nano /etc/mysql/my.cnf

Scroll down the file to location the [mysqld_safe] section. Add the following line:

timezone = GMT

Obviously you would set it to what you wanted to use, be it UTC, GMT+2 or whatever. Save your changes and restart MySQL:

sudo service mysql restart


(You can check by creating a table with a timestamp column and then inserting a record with NOW() as the value. This should then show up correctly when queried.)