When Does Daily Savings Time Start 2025. 3, 2025, when the clock will “ fall back ” one hour and, in theory, give us one extra hour of sleep. Daylight saving time will begin for 2025 on sunday, march 10 at 2 a.m.

Daily sunlight will start to increase when daylight saving time starts march 10. 3, when we fall back and gain an extra hour of sleep.