The document discusses the summer solstice on June 21st and equinoxes. On the summer solstice, the sun's path is furthest north in the southern hemisphere, rising in the northeast and setting in the northwest with the longest hours of daylight. During the equinoxes on March 21st and September 21st, the sun rises due east and sets due west with exactly 12 hours of daylight and night. The vernal equinox on March 21st has the sun rising directly in the east and setting directly in the west, equally dividing the day and night.