Question

which date is called the summer solstice and why​

Answer 1

Answer:

The summer solstice, also known as estival solstice or midsummer, occurs when one of Earth's poles has its maximum tilt toward the Sun. It happens twice yearly, once in each hemisphere (Northern and Southern). ... This is the June solstice in the Northern Hemisphere and the December solstice in the Southern Hemisphere.

Answer 2

Summer solstice occurs on 21 June and in it the day is very long in a year in only the northern hemisphere