Spring Equinox 2024 Date And. The sun entries into the 4 cardinal signs. When is the first day of spring in 2024?

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. The first day of spring is march 20, 2024, at 5:02 a.m.