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Did You Forget About Daylight Saving Time? Clocks Moved Forward Overnight

Most U.S. regions advance clocks by one hour at 2 a.m. Sunday, losing an hour of sleep to extend evening daylight, excluding Hawaii, Arizona, and some territories.

  • On Sunday, March 8, 2026, most U.S. regions began daylight saving time at 2 a.m. local time, advancing clocks from 1:59 a.m. to 3 a.m., except in Hawaii and Arizona.
  • Originally adopted in 1918, daylight saving time was a wartime fuel‑saving measure formalized by the Uniform Time Act of 1966 and expanded in 2005 to run from the second Sunday in March to the first Sunday in November.
  • Multiple studies show the spring shift raises heart attacks, strokes and fatal collisions, while a Rutgers meta-study estimates full-year DST would reduce pedestrian fatalities by 171 annually.
  • Many U.S. residents lose one hour of sleep when clocks move from 2 a.m. to 3 a.m., with later sunsets near 7:45 p.m. in Louisville, and officials advise replacing smoke and carbon monoxide detector batteries.
  • At the state level, 29 states have introduced legislation to stop clock changes, and the Sunshine Protection Act was reintroduced after passing the Senate in 2022.
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Daylight saving time begins: Are we changing the clocks for the last time?

Tired of changing the clocks twice a year? Several lawmakers are, too.

·Chicago, United States
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The Courier-Journal broke the news in Louisville, United States on Saturday, March 7, 2026.
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