Daylight saving time begins at 2 a.m. on Sunday, March 8, 2026 at which time clocks "spring forward" and reset to 3 a.m. and ...

Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world ...

Will the US spring forward clocks for daylight savings time in 2026? President Trump wants to stop changing clocks, Congress still debating changes. What we know ...

Time moves differently in space. Near black holes, gravity slows clocks and stretches seconds. This explainer reveals how time bends and affects astronauts and Earth.

The most precise clocks ever built are now testing Einstein, hunting dark matter, and reshaping how we define time itself. In A Nutshell The world’s most precise clocks are changing how we understand ...

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...

Add Yahoo as a preferred source to see more of our stories on Google. Perhaps the greatest, mind-bending quirk of our universe is the inherent trouble with timekeeping: Seconds tick by ever so ...