TIME Longevity will serve as a destination for reporting, analysis, and conversation about the forces extending human life, from scientific breakthroughs to societal change. As part of this new ...

Daylight saving time began in 2024 on Sunday, March 10 at 2 a.m. local time, when our clocks moved forward an hour, part of the twice-annual time change that affects most, but not all, Americans.

It's that time of the year when 2 a.m. becomes 3 a.m. in the matter of a second. Daylight saving time strikes this weekend, meaning most Americans will lose an hour asleep as we "spring forward." ...

1. When does daylight saving time end in 2024? This year, daylight saving time ends Sunday, Nov. 3, with clocks rolling back one hour at 2 a.m. A clock is seen in this undated stock photo.