Spring Equinox 2024 Date Uk Calendar. In 2024 the autumnal equinox will occur on 22 september at 12.44pm gmt (1.44pm bst). 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.

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. On this date, the day is equal in length to the night.