Answer:
Solistics is longest day of the year
Explanation:
The summer solstice also is known as midsummer occurs when earth pole has maximum tilt over the sun when the axis is tilted over 23.44 degrees occurs on June 21st in the Northern hemisphere. The length of the day is a function of various latitudes roughly defined as the period from sunrise to sunset. In tropics, it is 23.5 degrees N and in temperate its 23.5 degree S.