First Day Of Summer 2024 In Usa. It is also known as the summer solstice and it officially arrives at exactly 4:51 p.m. Is it really the longest day of the year?
The summer solstice is the time when the sun reaches its highest and northernmost points in the sky, according to the farmer’s almanac, marking the first day. In the northern hemisphere, the next summer solstice will take place on june 20, 2024.