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Daylight Saving TimeStarting in 2007, most of the United States and Canada observe DST from the second Sunday in March to the first Sunday in November. The change was part of the Energy Policy Act of 2005, and Congress retains the right to go back to the previous dates once an energy consumption study is done. On the second Sunday in March, clocks are set ahead one hour at 2:00 a.m. local standard time, which becomes 3:00 a.m. local daylight time. On the first Sunday in November, clocks are set back one hour at 2:00 a.m. local daylight time, which becomes 1:00 a.m. local standard time. From 1987 through 2006, daylight time began in the United States on the first Sunday in April and ended on the last Sunday in October. Not all places in the U.S. observe daylight time. In particular, Arizona, and Hawaii do not use it. Many other countries observe some form of "summer time", but they do not necessarily change their clocks on the same dates as the U.S. Daylight time and time zones in the U.S. are defined in the U.S. Code, Title 15, Chapter 6, Subchapter IX History of Daylight Time in the U.S. Information provided courtesy of U.S. Naval Observatory "Spring forward, Fall back" Other Links: |
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