Daylight Saving Time Begins on March 8
In United States, daylight saving time begins on the second Sunday in March. Clocks are set ahead one hour at 2:00 a.m. local standard time, which becomes 3:00 a.m. local daylight time.
For this year (2009), daylight saving time begins on March 8.
For more information about daylight saving, please see http://en.wikipedia.org/wiki/Daylight_saving_time.