Fall Back: Daylight Saving Time Ends Sunday

It's that time of the year again when clocks move back one hour for the end of Daylight Saving Time (DST).

DST is observed in California, which means the hour hands in Malibu "fall back" one hour this Sunday, Nov. 4 at 2 a.m., to 1 a.m., local time.

Daylight Saving first began in the U.S. in 1918, and is thought to promote energy conservation.

The end of Daylight Saving usually occurs on the first Sunday in November, however, exact dates of the time change are sometimes subject to your location or politics.

Most of Arizona, Hawaii and lands governed by the Navajo Nation in Arizona all observe DST year-round. And in 2007, the start and end dates were changed to study the effects of Daylight Saving on energy consumption. US Congress can change the dates back after the study is done.

The resumption of Daylight Saving Time will occur on the second Sunday of March, which in 2013 will be March 10.