Equinox 2024 Dates. An equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length. Here are the equinox and solstice dates—plus, answers to common questions about the seasons of the.
When do the four seasons start in 2024—for spring, summer, fall, and winter? The equinox in the northern hemisphere occurs twice a year around 20 march (the spring equinox) and around 22 september (the autumn equinox).