While DST was observed in some areas, the tradition became official in the U.S. when the Uniform Time Act of 1966 was passed.

Wondering if the clocks change this year? Here's when and what to know about daylight saving time 2026 start and end.

Add Yahoo as a preferred source to see more of our stories on Google. Setting the time on a watch. (Getty Images) Daylight saving time begins tonight. At 2 a.m. local time Sunday, clocks across most ...

Autumn is here, and that means it's time for the clocks to fall back. Daylight saving time starts on the second Sunday of March, when clocks spring forward an hour. Clocks will fall back an hour – so ...

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No matter the item on my list of childhood occupational dreams, one constant ran throughout: I saw myself using an old-fashioned punch clock with the longish time cards and everything. I now realize ...

First dreamed up decades ago, the world's first nuclear clocks are set to improve quickly, becoming more precise and aiding the hunt for dark matter.