Spring Equinox 2025 Time. For those of us in the northern hemisphere, this was marked by the arrival of the vernal equinox (otherwise known. 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.

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. Earth’s tilt on its axis is what causes this northward shift of the sun’s path across our sky at this time of year.