Autumn Equinox 2025 Eastern Time Usa

Autumn Equinox 2025 Eastern Time Usa. When do the four seasons start in 2025—for spring, summer, fall, and winter? According to the astronomical definition of the seasons, the autumnal (or fall) equinox marks.

Sunday, sep 22 8:43 am edt. 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.