Daylight saving time ends

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By the CNN Wire Staff

(CNN)– If you’re Barack Obama or Mitt Romney, you’ll get one more hour to scour for votes ahead of Tuesday’s presidential election.

If you’re spending a night on the town, that could translate to 60 more minutes dazzling the dance floor.

And if you’re tired, or perhaps lucky, that means one more hour of sleep.

All options are on the table this weekend, when U.S. residents turn back the clock as part of a semi-annual daylight saving routine.

At 2 a.m. Sunday, people will fall back one hour– in essence, allowing them to relive the 1 a.m. hour two times over.

The change affects all those in the United States except for people in Hawaii and parts of Arizona who do not observe daylight saving time. The territories of Guam, Puerto Rico, U.S. Virgin Islands and American Samoa also do not recognize the change.

For those who do change the digits on their clocks, the sun will seem to come up earlier in the morning and it will set earlier at night, relative to conditions just a few days earlier.

The idea for daylight saving came from legendary American inventor, statesman and founding father Ben Franklin who, in a 1784 letter to a French journal, suggested that Parisians could save thousands of francs annually by waking up earlier in the summer so they wouldn’t have to buy so many candles to light the evening hours.

The United States didn’t adopt the practice until the 20th century– for a brief time during World War I, again during World War II and on a state-by-state basis in the years after the war. It became a national policy, with some tinkering, beginning in 1966. Dozens of other countries now observe some form of daylight saving as well.

The extra hour that people will get this weekend will only last so long. Americans will have to give it back by “springing forward” — and turning ahead their clock — one hour on March 10, 2013.

™ & © 2012 Cable News Network, Inc., a Time Warner Company. All rights reserved.

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