Jim S. Winston

When Is The Summer Solstice For 2025. It is the longest day of the year that marks the arrival of the. The summer solstice is also known as the longest day, which is perhaps the most notable feature.

Solstice—the longest day of the year in the northern hemisphere and the shortest in the southern hemisphere—will occur on thursday, june 20, at 20:50 universal time (4:50. Edt (2051 gmt), marking the longest day in the northern hemisphere.