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thomedes/Windows-UTC-Time.reg

Created July 28, 2013 07:14
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Windows 7 hack to have BIOS clock (RTC) in UTC. Useful for dual-booting Windows / Linux. Don't give me any credit for it. I just googled for the solution and pasted it here for my own convenience.
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Windows-UTC-Time.reg
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001
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Usage

The procedure I've found to work correctly is:

  • Do the registry change
  • Reboot and enter into BIOS
  • Change (step back) the clock appropriately
  • Boot again into Windows to verify the correct time is shown

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