From 1987 to 2006, the country observed DST for about 7 months each year. The Uniform Time Act of 1966 aligned the switch dates across the USA for the first time.įollowing the 1973 oil embargo, the US Congress extended the DST period to 10 months in 1974 and 8 months in 1975, in an effort to save energy.Īfter the energy crisis was over in 1976, the DST schedule in the US was revised several times. This caused widespread confusion, especially in transport and broadcasting. Daylight saving time is an annual period when the U.S. Historically, there were no uniform rules for DST from 1945 to 1966. The annual ritual of changing our clocks to daylight saving time is coming at 2 a.m., Sunday, March 12. We usually change our clocks before going to bed on. To 'fall back,' clocks are 'sprung forward' one hour on Saturday night. The airline industry said it would cost millions of dollars to change. Daylight Saving Time ends on Sunday, November 6, 2022, at 2:00 A.M. The law does not affect the rights of the states and territories that choose not to observe DST. Daylight Savings Time Extended in the United States by one month beginning March. The current schedule was introduced in 2007 and follows the Energy Policy Act of 2005.Īccording to section 110 of the act, the US Department of Transportation (DOT) governs the use of DST. United States has observed DST for 106 years between 19 (DST in at least one location).ĭaylight Saving Time (DST) in the USA starts on the second Sunday in March and ends on the first Sunday in November.United States first observed Daylight Saving Time in 1918.Daylight Saving Time History in United States US dependencies do not use Daylight Saving Time (DST). Daylight Saving Time in Dependencies of USA Dependency Most of Arizona and Hawaii don't use DST. (51 in total, 49 where all observe DST, 1 which doesn't observe DST, 1 with parts on DST)ĭST in Other Locations in USA (1 Location) Business Date to Date (exclude holidays)ĭST in States and Federal Districts in USA.
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