First Day Of Spring 2024 Time Usa. Edt on tuesday, march 19. 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.
When is the first day of spring 2024? In 2024, the march equinox will occur on tuesday, march 19, at 11:06 p.m.