First Day Of Autumn 2025 Uk 2025

First Day Of Autumn 2025 Uk 2025. Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst. The first day of autumn, known for the equinox, has roots that stretch back through history and across cultures.

Fall’s start time on sunday, sept. However, the astronomical calendar is based on the position of the sun in relation to the earth and changes each year — known.