When Is The First Day Of Spring 2025 Uk Gov. By the meteorological calendar, spring will always start on 1 march; The first day of spring is march 20, 2024, at 5:02 a.m.

The first day of spring happens on the spring equinox, which marks the astronomical beginning of spring. The first day of spring is march 20, 2024, at 5:02 a.m.