Summer 2025 Date And Time In Usa. The summer solstice is on thursday, june 20, 2025. Summer 2025 starts on thursday, june 20th in the northern hemisphere, with the first day of summer being the longest daylight day of the year with the earth's axis having reached its furthest tilt and begins to change directiion back.
Although some consider summer’s end to be labor day or when the kids go back to school , the official last day of summer for. Is the solstice the longest day of the year?โand more!