Spring Equinox 2024 Eastern Time. While meteorological spring commenced on 1 march, the spring equinox signifies the onset of astronomical spring,. The first day of spring is march 20, 2024, at 5:02 a.m.
When is the first day of spring 2024? For those of us in the northern hemisphere, this was marked by the arrival of the vernal equinox (otherwise known as the “first point of aries “).