I think I may be seeing the same bug. I think the problem is that the time control panel does not update the hardware clock after updating the system clock.
Because the hardware clock is assumed to be in the local timezone, the system clock gets initialized to the wrong value after the next reboot. In my particular case: 1. Clock was set to US Eastern Daylight Time. Suppose the local time was 12pm. 2. I changed the timezone to US Pacific Daylight Time. The local time then shows as 9am. 3. I then reboot. The local time now shows as 12pm. I think this can be fixed by running hwclock --systohc (as root) following timezone changes. -- [time-admin] System clock reverts to GMT at boot https://bugs.launchpad.net/bugs/35423 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs