I have Linux Mint 16 Mate installed on a separate HDD. When booting up (using the F12 method to select HDD) into Linux I see the correct time. When I'm done in Linux and go back into windows my time is off by 5 hours, ahead by 5 hours. It's off in the BIOS as well in the OS. Go into the BIOS change it or change it in the OS, then go back into Linux and then go back into windows, the process repeats itself. It's just a big pain having to correct my time when I go from Linux to Windows every time.