Time is extremely important on a network. It's how all the servers keep synchronized. If you have a lot of servers on the network, it can be rather time consuming to make the changes. For instance, the company that I work for has a mix of Windows 2003 and Windows 2000 servers, but the vast majority of those servers are Windows 2000, which DID need to be updated manually. BTW, if you just reset the time on a workstation manually, when the "old" DST start/end comes along, it will change the time on your again.
Mark
Thanks for the info. I had also forgotten that we messed with the starting time for DST this year, so you’re right, pre-programmed changes will likely mess up people again.