Your answer depends on your location on the continent. At the extreme, six months at the South Pole.
Like every continent, Antarctica gets light from the sun, the moon and the stars.
Antarctica should last as long as the earth lasts.
The pink you see in Antarctica is a refraction of the available light. There is no natural 'pink snow' in Antarctica.
The 'light of day' in Antarctica can come from the sun, the moon, and the southern hemisphere of stars that surround planet earth.
Antarctica is 10% of the earth's surface, so at least that long.
Summer in Antarctica lasts as long as summer lasts anywhere in the southern hemisphere.
Russia is a long way from Antarctica.
A day -- during any month in Antarctica -- is 24 hours long.
Your answer depends on where you want to go in Antarctica.
Sources of brightness can be the sun, the moon and the southern hemisphere of stars. The brightness lasts 12 months out of every year. Under each of these light sources, Antarctica is 'bright' enough to navigate out of doors.
dont knowlol
I doubt that any helicopter can fly from Antarctica to Australia.