siehe auch https://help.ubuntu.com/community/UbuntuTime#Using_the_Command_Line_.28terminal.29
root@lemaker:~# echo 'Europe/Berlin' > /etc/timezone root@lemaker:~# dpkg-reconfigure tzdata Current default time zone: 'Europe/Berlin' Local time is now: Tue Jan 5 21:57:52 CET 2016. Universal Time is now: Tue Jan 5 20:57:52 UTC 2016.