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Daylight saving time ends on Sunday, November 1, 2023, allowing clocks to fall back one hour at 1 a.m. The practice, initiated by the Standard Time Act of 1918 and standardized in 1966, aims to extend evening daylight during summer months. Hawaii and most of Arizona, along with several U.S. territories, do not observe this change. Efforts to make daylight saving time permanent have faced legislative hurdles, with health experts divided on its benefits.
