Clock Change Dates 2025 Us. In 2025, daylight saving time begins on sunday, march 9, at 2 a.m., and ends on sunday, november 2, at 2 a.m. Daylight saving time begins on the second sunday in march and ends on the first sunday in november.

Clocks are turned backward one hour from 2 am to 1 am. When does daylight saving time start.