Autumn Equinox 2024 Australia Dates. In 2024, the first day of autumn in australia (southern hemisphere) will occur on tuesday, march 20 at sharp 02:07 pm. Autumn 2024 starts on sunday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the.
Specifically, this method uses the dates of the solstices (around december 21 and june 21) and the equinoxes (march 20 and september 22). The table presented here gives the date and time (greenwich mean time).