What Day Is The Spring Solstice 2024. Edt on tuesday, march 19. The astronomical spring will then last until the summer solstice, which this year lands on thursday 20 june 2024 at 4.50pm eastern time.

Spring equinox 2024 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. But why does the day mark the start of spring and why only in the northern hemisphere?.