Spring Solstice 2025 Dates Usa. For a listing of the dates and times of solstices and equinoxes through 2030, page down. On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,.

Starts on march 20, 2025, at 11:06 pm and lasts until june 20, 2025, at 4:51 pm (93 days) summer: According to the old farmer’s almanac, the astronomical start dates for the seasons are: