Windows Forum

Ask something
Discussion Locked

Daylight Savings Time

0 helpful
7 replies

by james.gazdik

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.
At what time of day does the adjustment for Daylight Savings Time take place on an NT4.0 server?

7 replies

by james.gazdik

I have an application that will fail if there are files created with identical date/time stamps. If I know THE EXACT TIME that NT makes the Dalight Savings switch-over, I can determine if it will generate a problem or not - does the switch-over take place when the app is not active.

by curlergirl

If the timing is that critical for your app, you might want to set up the w32time service and configure your server to synchronize it's time with one of the Internet time servers. Then, you can set it to synchronize at the same time every day so you'll know exactly when the time change would take effect. This program (w32time.exe) is available in the NT Resource Kit. Hope this helps!

by thechas

Since I am usually not up, or running my PC when the offical time change takes place, I can only assume that if a PC is running, the time change takes place at 2:00 AM on the appropriate day.

If the PC is off, the change takes place as part of the next boot.

I know that when I came into work on the Monday after the last time change, that the Windows PCs that were running had made the change.

Since duplicate times are only a problem for the Fall (back) time change, I suggest that you set a rule blocking file creation from 12:55AM to 2:05AM on the last Sunday of October. (for the US)

Remember, there are a few states and localities that do not adapt daylight savings time.

Chas

This discussion is closed to new replies.