Daylight Saving Time
Time Zones

When did daylight savings time begin in the us?


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Daylight Saving Time has been observed somewhere in the U. S. every year since 1918, but it was only nationwide 1918-1919, 1942-1945, and since 1967. The Uniform Time Act of 1966 took away the states' right to choose when they observe Daylight Saving Time, but it allows them to choose if they observe Daylight Saving Time. Clocks in most of Arizona haven't been adjusted since October 29, 1967, and clocks in Hawaii haven't been adjusted since June 8, 1947.