How to sync time between Windows and OS X?
The easy way is to set Windows to use UTC, I didn't test with Windows 8 but I think will work.

Start with Windows and create a new file with the name setUTC.reg and paste this text inside:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001


save and close, after double click to add the value to the windows registry.
Restart Windows and set the time, after the time zone will not change anymore.