Q: What is the summer solstice?

<p style=";text-align:left;direction:ltr">The summer solstice is known as the day on which the summer begins astronomically, and the summer solstice is characterized by the longest day of the year, and the shortest hours of the night. It comes on June 20 or 21 in the northern hemisphere, and on December 21 or 22 in the southern hemisphere.</p>