First Day Of Summer 2025 Usa Time. In the northern hemisphere, it always occurs around june 20 or 21. The first day of summer, also known as the summer solstice, will occur on saturday, june 21, 2025, at 10:42 pm edt.
Find out the date, how long in days until and count down to till summer 2025 with a countdown clock. In the northern hemisphere, it always occurs around june 20 or 21.