Clock time off on dualboot

Question

so i got windows 10 pro and ubuntu 20.04.2 lts on my dell latitude e5450. When i boot to ubuntu, then restart to windows 10, the time is wrong. It changes the bios time to +4 hours from now (UTC).

Does this answer your question? [Clock time is off on dual boot](https://askubuntu.com/questions/169376/clock-time-is-off-on-dual-boot) — karel, Nov 18 '21 at 16:27
Set Windows to UTC time: `Windows Registry Editor Version 5.00` `[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TimeZoneInformation]` `"RealTimeIsUniversal"=dword:00000001` Modify Registry at your own risk. — C.S.Cameron, Nov 18 '21 at 17:25

score 0 · Answer 1 · edited Nov 18 '21 at 06:19

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You just need to configure Windows so the hardware clock is UTC.

edited Nov 18 '21 at 06:19

Nimmam

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answered Mar 20 '21 at 21:31

Bernt Ribbum

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Its set to utc-5 – Nimmam Mar 20 '21 at 21:32
Better to use UTC. Then you don't need to bother with daylight time changes, and Linux always uses that. Should be easy to convince Win to do the same. – Bernt Ribbum Mar 20 '21 at 21:36
But its daylight saving where i am. – Nimmam Mar 20 '21 at 21:47
If hw time is UTC, the OS knows if there is daylight saving given your location and time of year. No changes need to be made at any time. – Bernt Ribbum Mar 20 '21 at 22:02
I do not have admin. – Nimmam Mar 26 '21 at 17:39
??? You have no Admin rights on your own machine? This is a Win fault that must be corrected on that system. – Bernt Ribbum Mar 26 '21 at 18:22
My granddaddy put it on. – Nimmam Apr 04 '21 at 17:09
In that case, @Nimmam, ask him to give you admin rights. This must be fixed in windows. Best of luck :) – Bernt Ribbum Apr 05 '21 at 18:37
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fixed - changed time zone for ubuntu and ubuntu time Password is only on Windows, and i set my own password on Ubuntu. – Nimmam Nov 17 '21 at 22:48

Clock time off on dualboot

1 Answers1