
Summer will officially arrive in the Northern Hemisphere on Thursday (June 20) at 4:51 p.m. EDT (2051 GMT) — the June Solstice.
At that moment, the sun will reach the point at which it's farthest north of the celestial equator. To be more precise, when the solstice occurs, the sun will appear to be shining directly overhead for a point on the Tropic of Cancer (latitude 23.5 degrees north) in the eastern Pacific Ocean, roughly 1,100 statute miles (1,800 kilometers) southwest of Los Angeles.