Windows 11 resets date and time every hour

Occasional Visitor
When I updated my PC to Windows 11, it started to set time to 4:00am 08.05.3209 on every startup. I don't know why, but now it does so about every hour, and opening cmd and setting date and time every hour is pretty annoying. I tried changing time synchronization server, it didn't help. How can I handle this problem?
System info:
Windows 11 21H2 22000.318
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