Summer Solstice Dates 2024. In 2024 the summer solstice will occur on thursday 20 june at 21.51 bst (20.51 gmt).  — summer begins with the solstice on thursday, june 20, 2024, marking the astronomical first day of summer in the northern hemisphere.

Edt on june 20, according to timeanddate.com. This happens around june 21 each year.