When Is Spring 2025 In America. The first day of spring is march 20, 2024, at 5:02 a.m. Friday, jun 20 10:32 pm edt.
Online calendar of holidays and days off in united states for the spring of 2025. 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.