When Is Spring 2024. 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. Edt on march 19, 2024, the sun crosses the celestial equator from south to north.

Here’s a list of the exact dates and times of the four seasons in north america, including the first days of winter, spring, summer, and fall for the next few years. When is the first day of spring 2024?