Resolved Clock Windows 10 never shows correct time

[KeesMacPro]

Hi,

After more than 2 decades without a Windows machine, I recently installed W10 (UEFI) on a Mac Pro 5,1 through OpenCore.
To my surprise I noticed the clock is always 2 hours earlier than the actual time when booted in Windows.

Although I've set Region and Time zone correctly , when I boot Windows the next day , same issue.
I've switched on and off : automatic time and automatic choise of region to no avail.
Nor did change the windows time server to another server change anything.
When I click "synchronize now" it shows the correct time.... until the next day.

I dont get at all how it's possible that an OS released in 2015 , is not capable of something so basic as showing the correct time...


I hope someone can help me out on this ,
thx in advance.

 

[chabig]

https://windowsloop.com/fix-wrong-time-windows-10/

Windows 11 Clock Time wrong [Fix]

Is your Windows PC displaying the wrong Time in the Taskbar? Learn how to make Windows 11/10 display the correct system time in the Taskbar.

www.thewindowsclub.com

 

[KeesMacPro]

Thx chabig, I appreciate it.
I'll dig deeper into this this weekend.

 

[chabig]

I’m not very Windows smart but it seems like software for sure.

 

[BigBlur]

Are you dual booting with MacOS? If so, that is likely the cause of the issue. MacOS and Windows interpret the system clock on the motherboard differently.

Fix Windows and macOS Showing Different Times When Dual Booting - Apple Gazette

If your system dual boots both Windows and macOS, you might notice that it’s impossible to get the system clocks to sync. No matter how you change the clock in one OS, it doesn’t fix the problem with the other OS. This is because of a disagreement about time-keeping methodology between Windows...

www.applegazette.com

 

[KeesMacPro]

Are you dual booting with MacOS? If so, that is likely the cause of the issue. MacOS and Windows interpret the system clock on the motherboard differently.

Yes, this is exactly the case, thx a lot!

 

[KeesMacPro]

@BigBlur : You nailed it , case closed ! 🙏

 

[mi7chy]

I get this dual booting Linux and Windows. From memory, the short term fix was toggling one of the options in Windows 10 'adjust data/time'. Maybe this will help if you're running Windows 10.

https://itsfoss.com/wrong-time-dual-boot/

I've since installed Windows 11 Insider Preview and no longer see the time change dual booting Linux.

 

[KeesMacPro]

From memory, the short term fix was toggling one of the options in Windows 10 'adjust data/time'. Maybe this will help if you're running Windows 10.

No, I went through all these options to no avail, but thx for chiming in.

The link @BigBlur posted worked perfectly and mentions dual booting Linux /Windows too btw : - )