Set your clocks forward one hour tonight
March 10, 2013
Daylight Saving Time begins
For most Americans, daylight saving time 2013 will begin 2 am on Sunday, March 10, when most states will spring forward an hour. Some places don't observe daylight saving time. Those include Hawaii, most of Arizona, Puerto Rico, the Virgin Islands, American Samoa, Guam and the Northern Marianas. For those who do, time will fall back to standard time again on Sunday, November 3, 2013, when daylight saving time ends.