Fall Equinox 2025 Time Uk. For autumnal equinoxes for the next 12 years scroll down the page. At the summer solstice, we have the longest day and the shortest night of the year.
London the exact moment of the autumnal equinox in 2025 is 22 september , at 19:19:18. The autumnal equinox, also known as the fall.