I'd guess that your BIOS is set to GMT+8 rather than GMT. If you right click on the clock in the top right corner and choose "change date and time" then press synchronise it should set ubuntu to be the right time. You can also use the "synchronise with internet clock" functionality there.
The proper fix is to set your BIOS clock to GMT. ** Changed in: Ubuntu Status: Unconfirmed => Rejected -- when install ubuntu set time is weird https://launchpad.net/bugs/59317 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs