First Day Of Spring 2025 Dates Usa. It is also called the spring quinox. Print date calendar for the spring 2025.

In the northern hemisphere, the astronomical start of spring, also known as the spring equinox, will occur on thursday, march 20, at 5:01 am edt in 2025. On the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.