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Configuring the Time Service to Log When the Time Is Changed

This article was previously published under Q307937
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
This article describes how to force the W32time service to log an event in the event log when the time has been adjusted.
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To enable logging for W32time, use Registry Editor to add the following registry values:
Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\Parameters
Value name: Log
Data type: REG_DWORD
Value: 0x00000064 (Hex)

Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\Parameters
Value name: WriteLog
Data type: REG_SZ
Value: True
After you make these changes, you must stop and restart the W32time service.

When the time is adjusted, event ID 61 is logged in the System log. The text for this event is similar to:
The Time service synced time from time source (SOURCE)
This is followed by event ID 0:
Time set (offset < .5) second
If an error with synchronization occurs, event ID 11 is logged:
The NTP server didn't respond

Article ID: 307937 - Last Review: 10/31/2006 03:05:41 - Revision: 2.1

  • Microsoft Windows 2000 Server
  • kbenv kbhowto kbinfo KB307937