Which circle experiences 24 hours of daylight during the winter solstice?

The Antarctic Circle experiences 24 hours of daylight during the winter solstice, which occurs around December 21st in the Northern Hemisphere. During this time, the Southern Hemisphere is tilted towards the sun, resulting in continuous sunlight in areas within the Antarctic Circle. This phenomenon occurs because the tilt of the Earth's axis allows places south of the Antarctic Circle to receive direct sunlight for an entire 24-hour period during the summer months in that hemisphere.

The other locations mentioned do not experience this phenomenon during the winter solstice. The Equator experiences relatively consistent daylight hours throughout the year without extreme variations. The Arctic Circle, on the other hand, would be experiencing polar night at the same time, resulting in 24 hours of darkness rather than daylight. The Tropic of Cancer is also not positioned to experience this phenomenon at all. Therefore, the Antarctic Circle is the unique location where 24 hours of daylight is noted during the winter solstice.