When Does Daylight Saving Time Begin In 2025. Daylight saving time 2025 starts in march, when clocks will 'spring forward' one hour. Daylight saving time will begin for 2025 on sunday, march 10 at 2 a.m.

On saturday night, clocks are set back 1 hour (i.e., gaining one hour) to “fall back.” sunrise. Daylight saving time always starts on the second sunday in march and ends on the first sunday in november for the united states.