What Day Is The Spring Solstice 2024 Usa. What is the spring equinox and what happens on this day? The 2024 spring equinox occurred at exactly 11:06 p.m.

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