Spring Equinox 2024 Uk Calendar. The first day of spring is march 20, 2024, at 5:02 a.m. 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.
The spring equinox (march 19, 2024) signals the start of spring in the northern hemisphere, the beginning of autumn in the southern hemisphere, and a rare moment of equal night across. The first day of spring is march 20, 2024, at 5:02 a.m.