When Is Spring Time Change 2025. When clocks reaches 2 a.m. Daylight saving time (dst) in 2025 will start on sunday, march 9.
Est sunday, march 10, for spring forward and ended, or fell back to standard time, at 2 a.m. Summer begins with the summer solstice, wednesday, june 21, 2034, 2:44 a.m.