Does Windows 10 support UTC as BIOS time?
Yep, I had success. Don't forget disabling the "internet update" for the time!
I used the way described in the ArchWiki using a QWORD on a 64bit Win10. The NTP is done on Arch and not on Windows, but the latter isnt getting booted so often anyway.
Here's the .reg
file:
RealTimeIsUniversal.reg
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=hex(b):01,00,00,00,00,00,00,00
From ArchWiki: UTC in Windows
Using
regedit
, add aDWORD
value with hexadecimal value1
to the registry:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation\RealTimeIsUniversal
Alternatively, create a
*.reg
file (on the desktop) with the following content and double-click it to import it into registry:Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation] "RealTimeIsUniversal"=dword:00000001
If the above appears to have no affect, and a 64-bit variant of Windows is being used, using a
QWORD
value instead of aDWORD
value may resolve the issue.