When Is Spring Equinox 2024 In. The spring equinox officially starts at 8:06 p.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.

When is the first day of spring in 2024? In 2024, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere).