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From the last 2 months, we are facing below issue on our Windows 2016 server every 10 days.

Server time is going back by 1 hour with the below message in eventvwr.

The system time has changed to ‎2023‎-‎12‎-‎27T07:34:29.500000000Z from ‎2023‎-‎12‎-‎27T08:34:38.153992100Z.
Change Reason: System time synchronized with the hardware clock.

It is again getting corrected after 2 hours.

The system time has changed to ‎2023‎-‎12‎-‎27T09:34:29.500000000Z from ‎2023‎-‎12‎-‎27T08:34:29.508436400Z.
Change Reason: System time synchronized with the hardware clock.

Below are the default settings of the server since very long time.

  • 'Set Time Automatically' is off in 'Date & Time settings'.
  • StartUp type of Windows Time service is Manual(Trigger) and is not running. This is a WorkGroup server & not joined to any domain.

How can we avoid the system time being synchronized with the hardware clock.

Ramhound
  • 44,080
Sowjanya
  • 11

1 Answers1

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To ignore the hardware clock, run the following command:

reg add "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TimeZoneInformation" /v RealTimeIsUniversal /d 1 /t REG_DWORD /f

This will add a registry key to ignore the clock, by doing this you will be using the internet time server.

harrymc
  • 498,455