Spring Equinox 2025 Date And Time. 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. The vernal equinox 2025 is on thursday, march 20, 2025 (in 77 days).

Vernal equinox date = 23 rd september 2025 (saturday) during september it is autumn time in the northern hemisphere and september equinox is called autumnal equinox and fall. It is also the point in the calendar where the day length is more or less equal to the.