When Is Summer Solstice 2024 Usa. The summer solstice — the exact moment when earth’s north pole is most tilted towards the sun — happens at 4:51 p.m. The first day of summer (june solstice) is when the sun is in its most northern position directly over the tropic of cancer.
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. When is the summer solstice 2024?