Fall Solstice 2024 Time Uk. The equinox and solstice define the transitions between the seasons of the astronomical calendar and are a key part of the earth's orbit around the sun. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.

The 2024 fall equinox—also called the autumn equinox—takes place on sunday, september 22, 2024. London the exact moment of the summer solstice in 2024 is.