2025 Solstice And Equinox Dates United States 2025. On the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. This refers to the northern.
On this date, the day is equal in length to the night. America the exact moment of the summer solstice in 2025 is 20 june, at 22:50:20.