2024 Equinox Dates. 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. For much of the world, it will also bring a partial lunar eclipse.

The name equinox comes from the latin aequus (equal) and nox (night). An equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length.