Fall Equinox 2025 Date. It is also called the autumnal equinox, fall equinox or the beginning of autumn. The march equinox occurs at 08:58 utc.
Equinox means equal day and night (12 hours each).it is a time for balance. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.