First Day Of Spring 2024 Countdown 2024. The first day of spring, also known as the vernal equinox, spring equinox and march equinox, is on march 19, 2025. The 2024 spring equinox occurred at exactly 11:06 p.m.

Spring gets its official start tuesday, march 19, 2024, in the northern hemisphere. Leap years are caused by earth’s rotation.