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 (http://support.microsoft.com/kb/256986/EN-US/) Description of the Microsoft Windows Registry
SUMMARY
This article describes how to force the W32time service to log an event in the event log when the time has been adjusted.
MORE INFORMATIONWARNING: 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
After you make these changes, you must stop and restart the W32time service.
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 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
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