2024 Spring Equinox Date Time And Range. But why does the day mark the start of spring and why only in the northern hemisphere? For those of us in the northern hemisphere, this was marked by the arrival of the vernal equinox (otherwise known as.
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. The first day of spring is march 20, 2024, at 5:02 a.m.