Spring Equinox 2025 Northern Hemisphere Path. When is the first day of spring in 2025? On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator, moving from the northern hemisphere to the southern.
Edmonton the exact moment of the vernal equinox in 2025 is 20 march, at 03:01:09. On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator, moving from the northern hemisphere to the southern.