Summer Solstice 2024 Time Edt. 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. The summer solstice happens on thursday, june 20, 2024!

In the southern hemisphere, it will occur on december 21 at 09:20 gmt (december 21, 04:20 a.m. The summer solstice, also known as the june solstice arrives june 20 at 4:51 p.m.