How many hour of daylight 80 degrees south on June 21st?

On June 21st, which is the summer solstice in the Southern Hemisphere, the region around 80 degrees south latitude experiences continuous daylight. This is due to the tilt of the Earth's axis, allowing areas within the Antarctic Circle to receive 24 hours of sunlight during this time. Therefore, at 80 degrees south on June 21st, there are 24 hours of daylight.