First Day Of Summer 2025 Usa Dates

First Day Of Summer 2025 Usa Dates. The first day of summer arrives with the solstice this year on thursday, june 20, 2025 at 4:51 p.m.  — when is the first day of summer?

In 2025, these are the astronomical dates and times for the start of each season: Edt (2051 gmt), and the summer solstice for the southern hemisphere occurs on.