First Day Of Spring 2025 Images. The first day of spring (march equinox or vernal equinox) is when the sun shines directly on the celestial equator passing from south to north and the length of day and night are almost the same. We are at the march equinox now.

We are at the march equinox now. First day of spring in 2025 is on thursday, the 20th of march (20/3/2025).