Spring 2025 Start Date. Find out the date when spring is in 2025 and count down the days until spring with a countdown timer. The first day of spring is march 20, 2024, at 5:02 a.m.

Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. The first day of spring is march 20, 2024, at 5:02 a.m.