What is the name of the June solstice in the Northern Hemisphere, when daylight is longest?

The June solstice in the Northern Hemisphere, when daylight is longest, is the summer solstice.

It occurs when that hemisphere is tilted most strongly toward the Sun. The Sun reaches its northernmost apparent position in the sky, directly above the Tropic of Cancer, which lies at about 23.4 degrees north latitude.

The exact moment can fall on June 20, June 21 or, more rarely in some time zones, another nearby calendar date. The date depends on Earth’s orbit, leap-year timing and local time zones. “Solstice” comes from Latin roots meaning “Sun standing still,” referring to the Sun’s apparent pause before its daily path begins shifting southward.

The Southern Hemisphere experiences its winter solstice at the same astronomical moment. A common misconception is that the summer solstice is always the hottest day; seasonal temperatures usually peak later because land and oceans retain heat.