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North of the arctic circle, or south of the antarctic circle, but only at certain times of the year.
Equinox
No place on Earth has 12 hours of daylight each and every day. Or, for that matter, on the Moon either, or on any known body in the Solar System..
Every day has 24 hours. Since 1 hour = 60 minutes, (24 hr)*(60 min/hr) = 1440 min. The exception to the 24 hours is that every once in awhile, they add a 'leap second' to the day, so that the atomic clocks stay in sync with the Earth's rotation. If you are referring to minutes of daylight on the Summer Solstice (day with the most daylight hours), then I'm sure there are tables out there to find this information, but it will vary by location. In areas near the Arctic Circle they have daylight nearly all day in the Summer time, for example.
depends what time of the year it is and where you live
North of the arctic circle, or south of the antarctic circle
This phenomenon occurs because the Earth tilts away from the sun, and this is the day where the extent of that phenomenon is shortest: one 24-hour period.
North of the Arctic Circle and south of the Antarctic one, the periods of daylight and darkness both vary from zero to six months, during the course of a year.
Never.The Antarctic Circle marks the latitude on planet earth south of which at least one 24-hour period has no sunrise or no sunset.All latitudes north of the Antarctic Circle experience one sunrise and one sunset each day...until the latitude of the Arctic Circle, where the reverse occurs.
It changes slightly every day, just like it does everywhere else on Earth. On a single day, it could be anything between zero and 24 hours, depending on the date, and exactly how far south of the Antarctic Circle you are. Over the course of a whole year, it averages out to 12 hours for each day. (Just like it does everywhere else on Earth.)
On June 21, the arctic circle, which is located at 66.5 degrees north latitude, through the north pole at 90 degrees, has 24 hours of daylight. On December 21, the antarctic circle, which is located at 66.5 degrees south latitude, through the south pole at 90 degrees, has 24 hours of daylight.
Winter solstice will come for the northern hemisphere on December 21 in 2014. The region of earth that will have 24 hours of daylight is everything south of the Antarctic Circle.
Any point on Earth rotates to face the Sun once each day. However, because of Earth's 23 degree axial tilt, in their respective summer months, those points north of the Arctic circle or south of the Antarctic circle will have the Sun visible in the sky for 24 hours a day. Conversely, in their winters these locations will be in the dark for 24 hours a day the sun will never rise. There is not a particular day when this happens.
Commonly, the 'shortest day of the year' everywhere is the day when there is the least amount of direct sunlight. On Antarctica the 'shortest day of the year' may contain no sunlight, because the sun doesn't rise -- or set -- every day south of the Antarctic Circle.
North of the arctic circle, or south of the antarctic circle, but only at certain times of the year.
North of the arctic circle, or south of the antarctic circle, but only at certain times of the year.
It is one 24 hour period of no sunrise at the Antarctic Circle, when the Arctic Circle experiences the same period of no sunset.