Vernal Equinox 2024 Uk 2024. The spring equinox, or the vernal equinox as it is more formally known, marks the astronomical start of spring, when the sun passes north over the celestial. Learn why—and let’s celebrate the start of this.

Know the significance of the special. 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.