Microsoft sends out a warning to those who use calendars in their operating systems to be careful because of the new daylight-saving time that was made in 2005 by the U.S. law.

The new daylight-saving time would start three weeks earlier and end one week later. The reason for the change, according to the U.S. congress, is that it would translate to more energy savings.

This new change affects U.S. and Canada but not most countrys. A person who works for CalConnect, a company that develops Calendar software said it is hard to predict how much damage the problem will do.

Source: Lfpress