Thanks for your bug. What version of Ubuntu do you use? If you use edgy that's a known issue, the backend code runs with the standard user which doesn't have the right to apply such changes, that's being worked
** Changed in: gnome-system-tools (Ubuntu) Assignee: (unassigned) => Ubuntu Desktop Bugs Status: Unconfirmed => Needs Info -- time-admin silently fails to change time zones https://launchpad.net/bugs/55720 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs