What Day Is The Fall Equinox 2025. December 21, 2024 at 1:20 am pst. Is it autumn or fall?.

Equinox means equal day and night (12 hours each).it is a time for balance. This year the autumn will start on sunday september 22, 2024 (day of the fall equinox) and will end on saturday december 21, 2024 with the winter solstice.