Comment 10 for bug 434565

For those unable to set the correct time/zone I found a (straight-forward) work around:
right click the time and date in the top right of your screen
open the preferences
go to locations and add your location/a location with the same time zone
click the time and date so the drop down menu will open
click the set button next to your location to set time zone to your zone
click time settings in the still open menu
set the correct time and click set system time

of course if you are familiar with the console the date command in combination with sudo should also work