Summer Equinox 2025 Time

Summer Equinox 2025 Time. The equinoxes occur around march 20 and september 22 each year, corresponding to an equal length of day and. An equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length.

An equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length. The autumn or fall equinox signals the end of summer on the astronomical calendar.