WASHINGTON (AP) _ America falls back to standard time at 2 a.m. Sunday.

That means it's time to set the clock back one hour before retiring Saturday night, or be an hour early for church or other activities Sunday.

Transportation Secretary Norman Y. Mineta, whose department is in charge of the time change, issued a reminder that this is also a good time to change the batteries in home smoke detectors.

Daylight-saving time returns on April 7.

Arizona, Hawaii and the portion of Indiana in the Eastern time zone remain on standard time throughout the year, so there'll be no movement of the clocks there. The same applies in the U.S. territories of Puerto Rico, the Virgin Islands and American Samoa.