Spring Forward, Fall Back as Daylight Saving Time Ends Sunday

With Fall in full swing, its time once again to shift clocks back one hour as Daylight Savings Time ends on Sunday November 2 at 2 a.m., giving an extra hour to people in the U.S., except in Hawaii and Arizona.

At 2 a.m. on Sunday morning, the clocks will be set back one hour to 1:00 a.m. local standard time.

Daylight Savings Time begins on the second Sunday in March at 2 a.m., setting clocks forward one hour. It ends on the first Sunday in November.

Among the clocks people may need to change are household clocks and appliance clocks. Personal computer software and cell phones usually updates times automatically. Safety advocates also advise changing clock times along with batteries in smoke detectors.

Arizona doesn't observe daylight savings because the state's desert geography means an extra hour of daylight would incur higher energy costs.

Hawaii does not observe the time changes because its tropical location means changes would not have much of an effect on daylight times.