Fall Equinox 2025 Time In India. At the summer solstice, we have the longest day and the shortest night of the year. 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.
Autumn equinox 2025 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator, moving from the. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.