Autumn Equinox 2024 Southern Hemisphere.  — summer nights are ending across the northern hemisphere as a new season approaches with the arrival of the equinox. We will talk about it in a later section.

 — later, in 2024, the march equinox (start of autumn for the northern hemisphere, spring for the southern hemisphere) takes place at 3:07 utc, march 20.  — in 2024, the spring equinox occurs at 11:06 p.m.