2024 Spring Equinox Date Time And And Year. What is the spring equinox and what happens on this day? 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.

Usually the equinox falls on. This year, the spring equinox will happen for the northern hemisphere on tuesday, march 19 at 11:06 p.m.