2024 Spring Equinox Date Time And Time. The spring equinox officially starts at 8:06 p.m. 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.
Spring is here โ officially, at least. In 2024, the official first day of spring is tuesday, march 19.