Set Your Clock: It's the End of Daylight-Saving Time

Officially we will fall back to standard time at 2 a.m. Sunday, though most of us will change our clocks Saturday night.

This is the last time the change will come in October. Thanks to a law passed last year, daylight-saving time will start earlier and end later beginning in 2007. It will last from the second Sunday in March to the first Sunday in November.

Some states and territories don't observe daylight-saving time and won't have to worry about changing their clocks. Those are Arizona, Hawaii, Puerto Rico, the Virgin Islands, American Samoa, Guam and the Northern Marianas.

Daylight-saving time returns next March 11.