Summer Solstice - 21 December 2008
The December solstice will occur at 12:04 (or 12.04pm) Coordinated Universal Time (UTC) on December 21, 2008.
It marks the longest day of the year in terms of daylight hours for those living South of the Tropic of Capricorn - the Southern hemisphere.
It is also known as the winter solstice in the northern hemisphere and marks the day of the year with the least hours of daylight for those living north of the Tropic of Cancer.
The sun is directly overhead on the Tropic of Capricorn in the southern hemisphere during the December solstice.
Depending on the Gregorian calendar, the December solstice occurs annually on a day between December 20 and December 23. On this date, all places above a latitude of 66.5 degrees north are now in darkness,
while locations below a latitude of 66.5 degrees south receive 24 hours of daylight.