Forum Discussion
danilopiazza
Jan 09, 2026Copper Contributor
Downsides of using UTC time by setting RealTimeIsUniversal
Hi, I have a dual-boot machine where I use both Windows 11 and Linux. To fix a minor annoyance with the hardware RTC clock always being set to the wrong time zone whenever I switch to the other OS,...
- Jan 14, 2026
Setting RealTimeIsUniversal to 1 tells Windows that the hardware clock is set to UTC, aligning it with Linux's expectations.
When this is enabled, Windows will interpret the hardware clock as UTC rather than local time.
alechemi
May 01, 2026Copper Contributor
I confirm that the appropriate system call gives the right result.
Probably the OS has to do some math, but it is not a problem with current hardware.
It IS actually possible nowdays tell Linux to use local time for RTS, but I disadvice it as Linux services are tipically more time-zone conscious than Windows application.