Daylight saving on some windows servers not working

time-synchronizationwindows-server-2003

We've just had a daylight saving change over here in NZ and some of my servers haven't changed over.

I've syncronised the PDC with an NTP server which is working. The PDC has the correct time. Other machines in the domain do not. I tried changing the other machines manually but after a few minutes the time jumped back 1 hour. How do I fix this? I read somewhere that the other machines in the domain sync to the PDC. Clearly that's not happening quite right.

Windows Server 2003 doesn't seem to log anything about when the time on the server has changed.

Best Answer

Has there been a Windows Update for daylight saving that wasn't applied to all the servers?

There's this update for Windows Server 2003 (for example) that states:

Installing this update enables your computer to automatically adjust the computer clock on the correct date in 2007 due to revised Daylight Saving Time laws in many countries.

but unfortunately doesn't state which countries are affected. It could well be that there have been subsequent updates for 2008 and 2009, which I didn't find.

Check that there aren't any updated pending for the affected machines.

Check Windows Update from the affected machines to see if anything's missing.

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