Dual Booting Clock Issues
Keeping
Your Mac and Windows BootCamp Clocks in Sync
This has
annoyed me for some time, however I’ve stumbled upon a simple registry edit
fix…
Essentially,
the incorrect clock setting happens because OS X use GMT time while Windows tries to
synchronize with your local time zone, getting confused when you reboot between
the two. Apple's own Boot Camp drivers for Windows are supposed to fix this
problem, though some users have noticed that it still happens even with the
drivers installed.
·
To fix it,
boot into Windows, click the Start button and type regedit.exe in the search box
·
Hit Enter
and navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation
·
Right-click
anywhere in the right pane and select New > DWORD (32-bit) Value
·
Name it RealTimeIsUniversal , then double-click
on it and give it a value of 1
·
Lastly,
reboot into OS X, adjust to the right time setting, and then reboot back into
Windows – your clock setting now actually displays the correct time.
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