When Is First Day Of Spring 2028 Usa. On the equinoxes the sun shines directly on the equator and the length of day and night is nearly. Rather than it becoming the earliest start to spring in 132 years, though, it will technically be the earliest in 232 years!
Spring starts at the moment when the sun is directly over the equator, going from south to north: Meteorologically, spring begins on march 1st.