Tuesday, June 21, 2011
It is the time of Midsummer, the point between May Day and Lammas, when many modern Pagans celebrate the sun god in all his glory. Yet, as he shines brightly, we know that his light will begin to dim. The sunlight begins to give way to darkness until the winter solstice when he will rise again.
In the northern hemisphere, the summer solstice is when the sun reaches it farthest point north of the celestial equator. This day has the greatest amount of time between sunrise and sunset making it the longest day and shortest night of the year. It falls around June 21st every year. In the southern hemisphere, the winter and summer solstices are reversed.
Here is another link with a ton of information