2024 Solstice And Equinox Dates 2024. The equinox is the time of year when the sun is at its zenith at the earth's equator, and the earth is at right angles (taking the poles) to the sun's rays. For a listing of the dates and times of solstices and equinoxes through 2030, page down.

An equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length. When do the four seasons start in 2024—for spring, summer, fall, and winter?