First Day Of Spring 2025 Usa. Spring is one of the four temperate seasons, the transition period between winter and summer. The first day of spring is in 2025 on march 20 (according to the astronomical definition).

United states 2025 holiday calendar with all major holidays and observances. † as of 2007, daylight saving time starts on the second sunday in march at 2:00 am and end on the first sunday of november at 2:00 am.