June solstice 21 has day shortest of the year in the Southern Hemisphere.
Explanation:
Viewed from 24 hours format the south pole lies at 90 degrees from the equator and as a result, the rays of the sun fall at 23.5 angles. The day light at the south poles runs for about three months since the september equinox.
Thus, Antarctic Circle is dark on the June Solstice. As the Antarctic circle is 66.5 degrees south hence the sun makes a brief appearance or the sun does not rise.
Sun remains completely below the horizon this is thus known as the Midwinter’s Day. The phenomenon of Civil twilight, Nautical twilight and astronomical twilight is found here from 6 to 12 degrees of latitude.
