Equinox Southern Hemisphere 2024. — the start of astronomical spring, known as the vernal equinox, occurred yesterday, march 19, 2024, at 11:06 p.m. — when is the first day of autumn 2024 in southern hemisphere?
In 2024, autumn equinox in australia (southern hemisphere) will occur on tue, march 20, at. There are two solstices and two equinoxes each year which mark four important points in earth’s orbit.