Summer Solstice June 20 2024. Here's everything you need to know about the northern hemisphere's longest day of the year. The 2025 june solstice will happen at 2:42 utc on june 21 (9:42 p.m.

Everything you need to know about june 20’s solstice, the longest day of the year in the northern hemisphere and the shortest in the southern hemisphere. I n 2024, june 20 marks the summer solstice, the first official day of astronomical summer.