Longest Day Of Summer 2024. While many people mark the whole day's importance, the. This year, cities will see the longest day on june 20, the first day of summer.
Midsummer is celebrated in many countries and is often linked to the. In 2024, the summer solstice will occur on thursday 20 june at 9.51pm bst (4:50 pm edt new york, 1:50pm pdt los angeles).