First Day Of Summer 2024 Usa Time. This year's summer solstice will arrive this thursday on june 20 for the northern hemisphere, according to nasa. It is the longest day of the year that marks the arrival of the summer season.

The summer solstice arrives at 4:50pm edt thursday, according to nasa. In 2024, summer solstice in the northern hemisphere will occur on thursday, june 20 around 4:50 p.m.