SAN FRANCISCO (CBS / AP) — Daylight saving time returns on Sunday to California and much of the nation, so people will need to turn the clocks forward one hour before going to bed.

While the system won’t necessarily save anything on Sunday—there’s still the same amount of daylight—it will just shift to end later in the evening.

The occasion also serves as a reminder to check and replace batteries in smoke and carbon monoxide detectors, according to the San Francisco Fire Dept.

Despite being mentioned by Ben Franklin in the 1700s, daylight saving time did not begin until World War I. The country adopted the system to conserve fuel needed to produce electric power.

During the energy crisis in 1974, daylight saving time began in mid-winter rather than early spring.

Some parts of the country don’t observe daylight saving time. Those include Hawaii, most of Arizona, Puerto Rico, the Virgin Islands, American Samoa, Guam and the Northern Marianas.

Daylight saving time ends Nov. 6.

(Copyright 2011 CBS San Francisco. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

Comments (2)
  1. sanfran says:

    Less sleep, bummer, let’s skip it this year, I’m tired.

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