2025 Equinox Calendar. On this date, the day is equal. Find out the date when march equinox is in 2025 and count down the days until march equinox with a countdown timer.
It also lists astronomical sunrise and sunset timings on autumnal equinox day. Autumn 2025 starts on monday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the earth’s axis.