When Do The Seasons Start in 2019–2020? | Summer Solstice …

Autumn (Fall) On the autumnal equinox, day and night are each about 12 hours long (with the actual time of equal day and night, in the Northern Hemisphere, occurring a few days after the autumnal equinox). The Sun crosses the celestial equator going southward; it rises exactly due east and sets exactly due west. See our First Day of Fall page …

Link: https://www.almanac.com/content/first-day-seasons