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Local Time Synchronization

Updated: November 25, 2009

Applies To: Windows Server 2008 R2

The Windows Time service (W32time) synchronizes local time with a time source. The Windows Time service on a domain controller can be configured as either a reliable or an unreliable time source. The Windows Time service running on a client will attempt to synchronize its time source with servers that are indicated as being reliable. The Windows Time service can configure a domain controller within its domain as a reliable time source, and it synchronizes itself periodically with this source.

Events

Event ID Source Message

21

Microsoft-Windows-Time-Service

The time service is configured to use one or more input providers, however, none of the input providers are available. The time service has no source of accurate time.

28

Microsoft-Windows-Time-Service

The time provider NtpClient is configured to acquire time from one or more time sources, however none of the sources are accessible. NtpClient has no source of accurate time.

29

Microsoft-Windows-Time-Service

The time provider NtpClient is configured to acquire time from one or more time sources, however none of the sources are currently accessible. No attempt to contact a source will be made for %1 minutes. NtpClient has no source of accurate time.

33

Microsoft-Windows-Time-Service

The time service has made a discontinuous change in the system clock. The system time has been changed by %1 seconds.

34

Microsoft-Windows-Time-Service

The time service has detected that the system time needs to be changed by %1 seconds. The time service will not change the system time by more than %2 seconds. Verify that your time and time zone are correct, and that the time source %3 is working properly.

35

Microsoft-Windows-Time-Service

The time service is now synchronizing the system time with the time source %1.

36

Microsoft-Windows-Time-Service

The time service has not synchronized the system time for %1 seconds because none of the time service providers provided a usable time stamp. The time service is no longer synchronized and cannot provide the time to other clients or update the system clock. Monitor the system events displayed in the Event Viewer to make sure that a more serious problem does not exist.

37

Microsoft-Windows-Time-Service

The time provider NtpClient is currently receiving valid time data from %1.

38

Microsoft-Windows-Time-Service

The time provider NtpClient has not received response from server %1.

50

Microsoft-Windows-Time-Service

The time service detected a time difference of greater than %1 milliseconds for %2 seconds. The time difference might be caused by synchronization with low-accuracy time sources or by suboptimal network conditions. The time service is no longer synchronized and cannot provide the time to other clients or update the system clock. When a valid time stamp is received from a time service provider, the time service will correct itself.

51

Microsoft-Windows-Time-Service

Time Provider NtpClient: The time sample received from peer %1 differs from the local time by %2 seconds. The observed transmission delay from the server was %3 milliseconds.

52

Microsoft-Windows-Time-Service

The time service has set the time with offset %1 seconds.

53

Microsoft-Windows-Time-Service

The time provider NtpClient fails sending request to server %1.

Related Management Information

Clock Manager

Active Directory

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