Daylight saving time explained

Published On: Nov 04 2011 11:22:25 AM CDT   Updated On: Oct 31 2014 09:19:18 AM CDT

Daylight saving time ends this weekend. What's behind the tradition of turning our clocks back each fall?

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But people in Hawaii and most of Arizona-- along with Puerto Rico, American Samoa and the Virgin Islands -- will do nothing come Saturday. Those locales never deviate from standard time.

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