Summer Equinox 2024 Date. An equinox is one of two days in the year when the sun crosses the equator and day and night become equal in length. In 2024, the summer solstice will occur on june 20, at 20:51 gmt in the northern hemisphere, and on december 21, at 09:20 gmt in the southern hemisphere.
They occur between the summer. As with the spring equinox this is a point of seasonal equilibrium with.