Spring Equinox 2025 Australia Time. On this date, the day is equal. Vernal / spring equinox 2025 the spring or vernal equinox marks the astronomical first day of spring.

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.