Spring Equinox 2024 Season. It also provides information on why winter is the shortest season, what defines each season, and when each of them starts in 2023. “along with the fall equinox, this marks a time when day and night are of equal length,” says.
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 vernal equinox marks the start of the spring season for the northern hemisphere.