I'm experiencing a strange issue after installing Linux Mint alongside Windows 10. The time is correct in Linux, but every time I boot into Windows after using Linux, the clock is off by one hour. I've checked my settings, and both the time zone and sync options are correct. After clicking sync, Windows shows the right time. It's not a huge problem, but I'd love to understand why this is happening and if there's a fix.
4 Answers
This is a pretty common issue when dual-booting. Both operating systems assume different time standards. What you can do is check out some guides that walk you through setting Windows to use UTC instead of local time. It's more seamless that way, especially when it comes to any time zone changes.
Yeah, local time handling can get tricky, especially with different time zone rules. Better to stick to one standard for both.
The crux of the issue is that Windows and Linux manage the system clock differently. Linux assumes the hardware clock runs on UTC, while Windows uses local time. To fix the time discrepancy, you can either adjust Linux to consider local time or configure Windows to use UTC. The latter is usually the better option to prevent any weirdness during daylight saving time changes.
Setting Windows to UTC involves tweaking the registry. Just run regedit, head to HKEY_LOCAL_MACHINESystemCurrentControlSetControlTimeZoneInformation, create a new DWORD named RealTimeIsUniversal, set it to 1, and reboot. That should sort it out!
Thanks for the clarification! I had no idea switching between OSes would affect the clock like that. I'll definitely give this a try.
I feel your pain. I ran into this issue as well when I set up my dual-boot. The way Windows handles the clock is really outdated. Definitely look into making Windows use UTC. It's less of a headache overall if both systems understand the time the same way.
Also, here's another point: it's not just about how time is set, but also how updates can affect it. Making Windows use UTC is better in the long run because it prevents issues when time settings get updated due to changes in politics or laws. Just something to keep in mind!

Exactly! I read about this issue a while back—makes total sense. I think I might try switching to UTC on Windows to avoid future headaches.