Daylight saving time explained

Published On: Nov 04 2011 11:22:25 AM CDT   Updated On: Mar 05 2015 12:06:33 PM CST

Daylight saving time begins this weekend. What's behind the tradition of pushing our clocks ahead each spring?

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Most U.S. residents now set their clocks one hour forward in the spring and one hour back in the fall.

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