Sunday, March 8, 2009

Daylight Saving Time Facts

Electric Time Company employee Walter Rodriguez cleans the face of an 84-inch (213-centimeter) Wegman clock at the firm's plant in Medfield, Massachusetts, on October 30, 2008. For most people in the United States, daylight saving time begins in the wee hours of March 8, 2009, with clocks turned forward one hour. Photograph courtesy AP Photo/Elise Amendola

From The National Geographic:

Daylight saving time in most of the United States starts this year in the early hours of March 8. The "spring forward" marks the second time the country has observed the switch in March rather than April since changes to the system were adopted in 2007.

Contrary to popular belief, no federal rule mandates that states or territories observe daylight saving time.

Most U.S. residents set their clocks one hour forward in spring and one hour back in fall. But people in Hawaii and most of Arizona—along with the U.S. territories of Puerto Rico, American Samoa, and the Virgin Islands—will do nothing. Those locales never deviate from standard time within their particular time zones.

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