Spring 2025 And Fall 2025 Meaning. On this date, the day is equal. The spring, or vernal, equinox, brings nearly equal amounts of daylight and darkness.

Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. Fall starts at the moment when the sun is directly over the equator, going from north to south: