Spring Equinox In 2025. The beginning of spring is a astronomical event associated with the spring equinox, which marks one of the two times in the year when the earth's axis is. What is the spring equinox?
The first day of spring is march 20, 2024, at 5:02 a.m. 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.
