Spring Equinox 2024 Date And Time. 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. Fall begins with the autumnal equinox, monday, september 22,.
Edt on march 19, 2024, the sun crosses the celestial equator from south to north. What is the spring equinox and what happens on this day?