When you use the Microsoft .NET Framework 2.0 in Windows Vista, the DateTime.Now property may display results that are incorrect by one hour. This problem occurs if the following conditions are true:

• Windows Vista is configured to use the Jerusalem time zone.
• The months contain daylight saving time (DST) transitions.

For example, in 2007, the DateTime.Now property incorrectly reports DST as starting five days early (on March 25 instead of on March 30). Additionally, the DateTime.Now property will incorrectly report DST as ending 14 days late (on September 30 instead of on September 16).

Therefore, .NET Framework programs such as Windows Media Center that are running in Windows Vista will be off by one hour in the Jerusalem time zone during these periods.