First Day Of Autumn 2024 Date Uk. Autumnal equinox marks the end of summer and the beginning of fall. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m.
For ease, the meteorological autumn officially begins on the 1st of september 2024. The first day of autumn, known for the equinox, has roots that stretch back through history and across cultures.