Spring Equinox 2025 Time Pst. The spring equinox 2025 is a significant astronomical event that marks the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Therefore, the equinox in march is referred to as the spring equinox even though fall is happening in the southern hemisphere.
Fall begins with the autumnal equinox , monday, september 22, 2025, 2:19 p.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.