For the Northern Hemisphere, the official summer season starts on June 20 or 21, depending on where you live, with the arrival of the summer solstice. So what is a solstice, exactly? It's the ...

Here’s how it works. The summer solstice for the Northern Hemisphere occurs on June 20, 2025, at 1:41 p.m. EDT (0241 GMT on June 21), and the summer solstice for the Southern Hemisphere occurs ...

This year, the summer solstice, the longest day of the year, falls on June 20. Like all years, it will mark a turning point ...