Because of the Earths tilt.
This phenomenon occurs during the austral summer and part of the early fall.
Depending on where you are on the continent, you can experience 24 hours of sunlight each day during the summer months.
Anywhere south of the Antarctic Circle. The only land area there is the continent of Antarctica.
The only desert that would have 21 hours of sunlight would be Antarctica during the summer months.
Anything south of the Tropic of Capricorn - i.e., within about 23.5 degrees of the south pole.
No. There are places on the Antarctic continent when there are 24 hours of sunlight -- but during the summer.
During many of the summer months -- October to February -- parts of the Antarctica continent experience no sunsets.
Antarctica tilts toward the sun during the summer season, which begins on December 21.
The southern hemisphere receives more sunlight during December As the earth's axis tilted to about 22.5°. The southern hemisphere is tilted towards the sun.
November, December and January are usually the warmest months on Antarctica. The temperature, however, is rarely above freezing during those months.
Antarctica is cold because it lacks sunlight during the winter months. Antarctica is windy based on Katabatic winds that flow downhill from the polar plateau -- about two miles high, and that are powered by the rotation of the earth.
Antarctica tilts toward the sun during the summer season, which begins on December 21.