Set your clocks back: Daylight saving time ends 2 a.m. Sunday

Nov. 2, 2013 at 5:49 PM

WASHINGTON, Nov. 2 (UPI) -- Daylight saving time comes to an end this year at 2 a.m. Sunday, bringing most of the United States back an hour.

Daylight saving time as Americans know it was standardized the Uniform Time Act of 1966, Long Island Newsday reported.

It is not mandatory -- Arizona and Hawaii do not participate in the time change.

ABC News reported the time change can be rough on the body, and recommended going to bed and waking up at normal times to help with the change.

"It will hit you Sunday evening," said Dr. Yosef Krespi, director of the New York Head and Neck Institute's Center for Sleep Disorders. "But if you're body clock is tuned to waking up with sunlight, you're going to benefit."

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