please give me the places that experience a 24 hour daytime?

Answer 1

Mr. Know It All's answer is almost correct - except for the statement there there is only one sunrise and one sunset per year at the poles. That is not true.

On Sept. 21 and March 21, every place on earth has the same amount of daylight, and therefore the north and south poles have a "normal" cycle of day and night.

On June 21, every place on the Arctic Circle (66° 40'N) has 24 hours of daylight, and the further north you go from there, the more consecutive days of daylight you have. On December 21, every place on the Antarctic Circle (66° 40'S) has 24 hours of daylight.

Just look at any globe or map of the world, and look for places north of the Arctic Circle and south of the Antarctic Circle. It will be easy to see the places you need, and you will see Alaska, Yukon, northern Canada, Greenland, Norway, Sweden, many parts of northern Russia, and the Antarctic.

*EDIT* - a comment to Mr. Know It All's edit. I have been north of 80° north latitude (but never to the exact pole unfortunately) several times at various times of year, and I can tell you from personal experience (in addition to my knowledge as a scientist) that in March and September, the cycle of day and night is very similar to what you would experience closer to the equator, except perhaps the periods of twilight last a bit longer. On June 21 (or near June 21, depending on your latitude), the sun makes a broad low circle in the sky; at noon it will be in the southern sky and at midnight it will actually be in the northern sky close to the horizon (again depending on the date and your location). On December 21, on the Arctic Circle, the sun will not be visible at all, but there will be some "twilight" due to refraction in the atmosphere. Either side of Dec 21, and again on the Arctic Circle, the sun will barely be above the horizon for a few minutes due south of your location.

Every spot on earth between the Antarctic Circle and the Arctic Circle will have exactly 365 sunsets and 365 sunrises in a non leap year. Places south or north, respectively, of those circles, will have less than 365 sunrises and sunsets, but it will certainly be more than one.

I agree with you that at exactly 90° north or south latitude it could be argued that there is only one sunrise and one sunset per year, but due to refraction in the atmosphere the apparent effect will be a more normal sunrise and sunset cycle. So thanks for clarifying that!

Remember that the earth's rotational axis is tilted at about 23.5° relative to the plane of rotation around the sun. If you can imagine that in 3D, then it is easier to visualize the significance of the Arctic and Antarctic Circles, and why there is one sunrise and sunset at the Poles, 365 at the two Circles, and a number between 1 and 365 in between.

Thanks for the interesting discussion.

The bottom line - to answer the original question - is that any place north of the Arctic Circle will experience at least 24 hours of "daytime" on June 21, and any place south of the Antarctic Circle will have it on December 21.

Answer 2

Answer: North and south poles (actually above and below the arctic circles)

In the northern hemisphere, the Arctic Circle is the southernmost latitude where 24-hour daylight can occur at least on one day in a year (northern summer solstice about June 21);
In the southern hemisphere, the Antarctic Circle is the northernmost latitude where 24-hour daylight can occur at least on one day in a year (southern summer solstice about December 21);
At the poles there is only one sunrise and one sunset in the course of a year. This occurs around the time of the equinoxes.

Good luck!

** EDIT ** Sorry Georock, I beg to differ... Day and night
During the summer months, the North Pole experiences twenty-four hours of daylight daily, but during the winter months the North Pole experiences twenty-four hours of darkness daily. Sunrise and sunset do not occur in a twenty-four hour cycle. At the North Pole, sunrise begins at the Vernal equinox taking three months for the sun to reach its highest point at the summer solstice when sunset begins, taking three months to reach sunset at the Autumnal equinox. A similar effect can be observed at the South Pole, with a six-month difference. At both poles 3 months of "night", 3 months of "sunrise", 3 months of "day", and 3 months of "sunset" equal one sunrise and sunset a year, you may want to double-check your sources.

Answer 3

The north and south poles at certain times of the year.

Answer 4

Alaska, Sweden, Norway.