Time reference of windows

Question

I want to know how window 10 refer time reference from UTC (Coordinated Universal Time).

I set UTC as time reference. But I'm not sure how often window 10 refers this references. (e.g. once a minute, once an hour)

Please let me know how often it happens.

There is no proper tags related to this topic.

Thank you

Answer 1

Hello @hyunmin jang
Windows 10 synchronizes its clock with UTC (Coordinated Universal Time) through the Windows Time service. By default, the time synchronization interval is set to once every 7 days. However, this interval can be adjusted for more frequent synchronization if needed2.

If you want to change the synchronization interval, you can modify the SpecialPollInterval registry key. The value is in seconds, so for example, setting it to 3600 would sync the clock every hour.
For details on the above, please refer to https://learn.microsoft.com/en-us/troubleshoot/windows-server/active-directory/w32time-sync-specialpollinterval-ignored
https://learn.microsoft.com/en-us/windows-server/networking/windows-time-service/configuring-systems-for-high-accuracy

Other TPA references for your understanding:
https://serverfault.com/questions/111954/how-to-set-a-frequent-period-for-ntp-client-to-sync-with-the-ntp-server

https://blog.jsinh.in/how-to-change-time-sync-time-interval-in-windows/#:~:text=The%20default%20time%20to%20automatically,state%20before%20making%20any%20changes.

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