Vernal Equinox 2025 Date. Vernal equinox, two moments in the year when the sun is exactly above the equator and day and night are of equal length; The vernal equinox, the astronomical beginning of spring, occurs this year today, tuesday, 19 march, 2025 at 3:06 utc (11:06 pm edt).
This equinox happens when the sun crosses the celestial. The vernal equinox โ is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses the celestial equator.