What Day Is The Summer Solstice 2025 Calendar. In the northern hemisphere, the 2025 summer solstice will occur on june 20 at 20:51 gmt (4:51 p.m. In 2025, the summer solstice will occur at 4:50 p.m.

But why does this happen, and what is the summer solstice? In 2025, the summer solstice will occur at 4:50 p.m.