Spring Equinox 2024 Date Uk Dates. 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. This year, the spring equinox falls on wednesday 20 march, and the astronomical spring lasts until the summer solstice.

They occur between the summer and winter. But why do we celebrate the spring equinox?