What Day Is The Autumn Equinox In 2024 Dates.  — when is the first day of fall in 2024?  — in the northern hemisphere, the autumnal equinox takes place on september 22, 2024, at 12:44 gmt (08:44 a.m.

The 2024 september equinox will fall at 12:44 utc (7:44 a.m. Spring equinox 19 march, summer solstice 20 june, autumn equinox 22 september, winter solstice 21 december.