Microsoft does not support Windows 2000 anymore and it shows this time, on the occation of daylight saving time change update - ony XP and Server 2003 were updated automatically.

If you are running Windows 2000 you will have more work for the daylight saving time change. Microsoft has released KB article 914387 which outlines the process you must go to for the change. There are two methods by which you can change the time zone for Windows 2000 (Professional and Server). The first is to download the TZEdit tool from Microsoft and run this tool (it installs by default to c:\Program Files\TZEdit\) to manually create and change your time zones. This method will require you to manually change every computer.

The second method provided by Microsoft for updating Windows 2000 is a combination of a registry edit and a VBS script from here. You will need to copy the text for each of them and save them locally with the proper file extensions (.reg and .vbs respectively). You then need to import the registry settings change and run the vbs script to perform the update. This process can be automated.

For further information, please checkout: http://articles.techrepublic.com.com/5100-10877_11-6161680.html