Windows to UTC

From ALT Linux Wiki

For Windows to think, what time in BIOS set up by Greenwich (UTC), need to write to his registry next settings: 

Windows Registry Editor Version 5.00

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

For 64-bit Windows file have next appearance: 

Windows Registry Editor Version 5.00

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

Or 

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=hex(b):01,00,00,00,00,00,00,00

You can create .reg-file with above content and run it.

Or run as administrator next command:

reg add "HKLM\SYSTEM\CurrentControlSet\Control\TimeZoneInformation" /v RealTimeIsUniversal /t REG_DWORD /d 1 — for 32-bit Windows,

reg add "HKLM\SYSTEM\CurrentControlSet\Control\TimeZoneInformation" /v RealTimeIsUniversal /t REG_QWORD /d 1 — for 64-bit Windows.