I recently noticed I had to reset the time on my PC whenever I rebooted from Linux into Windows. It seemed like it started after I had to reset my Windows 8 install (seems like I have to do that a lot!) I like that Linux wants the hardware clock to be UTC, but I wish there was a way to make Windows work with that…
It turns out, there is a registry setting that takes care of this:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation] "RealTimeIsUniversal"=dword:00000001