Were you aware that in August of 2005, the United States Congress passed the Energy Policy Act, which makes daylight saving time (DST) start three weeks earlier and end one week later.
The law goes into effect this year, so we will all ?spring forward? our clocks at 2:00 A.M. on the second Sunday in March (March 11, 2007). Even if you are aware of this, your computer may not. Microsoft has a useful web page on this, entitled Don’t let your computer fall behind. Here is the advice given there.
If you use a recent version of the Windows operating system, you know that normally you don’t have to manually change the time for DST. The operating system does it for you.
Even though these versions of Windows are smart enough to know about DST, they’re not smart enough to know about the Energy Policy Act, so you’ll have to install an update that will make the change.
The only exception for this is Windows Vista. If you buy a new computer that runs Windows Vista, the updates are already installed.
If you’re allowing automatic Microsoft Updates, you may find that the necessary update is already installed.