The Summer Solstice can occur anywhere from the 20th to the 22nd depending on the time zone you live in. It marks the start of summer in the Northern Hemisphere, as well as the longest day of the year. This is your opportunity to start your summer vacation and get working on all those fun things you had to put off all year.

June 20th marks the Summer Solstice, or the day that summer begins.

The Summer Solstice has marked the beginning of summer since ancient times, when astronomers began to study the rotation of the Earth on its own axis and how this affects the season's changes.