Fix Incorrect Clock Settings in Windows When Dual-Booting with OS X or Linux

• Start regedit
• navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation.
• Right click anywhere in the right pane and hit New > DWORD (32-bit) Value.
• Name it RealTimeIsUniversal, then double click on it and give it a value of 1.

The next time you reboot from OS X into Windows, you should notice that your clock actually displays the correct time.

Ref:

• http://lifehacker.com/5742148/fix-windows-clock-issues-when-dual+booting-with-os-x?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+lifehacker%2Ffull+%28Lifehacker%29&utm_content=Bloglines