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Daylight Saving Time Ends: Health Risks Spark Debate

9/23/2025

38 9 Full Breakdown

Summary

Story summary

DST ends on November 2, 2025 at 2 a.m., when clocks fall back one hour.
DST began in World War I to save energy and remains in use in most states; Hawaii and much of Arizona do not observe it.
Critics say the benefits are outdated, with time changes linked to higher risks of heart attack and mood disturbances.

History

Historical Context

Daylight Saving Time (DST) was first implemented in the U.S. in 1918 under the Standard Time Act as a wartime measure to conserve energy. It was repealed in 1919 but reinstated during World War II. The Uniform Time Act of 1966 standardized DST, allowing states to opt out. Today, states like Hawaii and Arizona do not observe DST, reflecting ongoing debates about its effectiveness and health impacts.

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Story summary

DST ends on November 2, 2025 at 2 a.m., when clocks fall back one hour.
DST began in World War I to save energy and remains in use in most states; Hawaii and much of Arizona do not observe it.
Critics say the benefits are outdated, with time changes linked to higher risks of heart attack and mood disturbances.

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