Verify your Windows Time service

7 03 2008

When I verify my time difference between my local system and the time.windows.com NTP server I see I have 11 seconds difference.

Execute the following commands to check your local time service.

  • Open a command prompt
  • Type w32tm /stripchart /computer:time.windows.com /samples:5 /dataonly

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I trust Microsoft that they are well maintaining their time infrastructure, but still I performed two additional checks to nist.gov servers.

  • w32tm /stripchart /computer:time.nist.gov /samples:5 /dataonly
  • w32tm /stripchart /computer:time-b.nist.gov /samples:5 /dataonly

Now I am manually configuring the Windows Time Service to synchronize my local time with the NTP peer at Microsoft.

  • w32tm /config /manualpeerlist:time.windows.com /syncfromflags:manual /reliable:yes /update

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Three new events are generated in Windows Vista

The time service is now synchronizing the system time with the time source time.windows.com (ntp.m|0×0|0.0.0.0:123->207.46.232.182:123).

The system time has changed to 3/7/2008 9:51:02 PM from 3/7/2008 9:51:13 PM. (My 11s ;-))

The system time has changed to 3/7/2008 9:51:02 PM from 3/7/2008 9:51:02 PM.

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Final stripchart check and yes offset is 00.xxxx. Please consider these steps on your Active Directory PDC domain controller and their time source for your domain. For more information go to this article.


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