<P> The Amundsen--Scott South Pole Station experiences this from May 15 to late July . </P> <P> The North Pole experiences this from November 14 to January 29 . </P> <P> If an observer located on either the North Pole or the South Pole were to define a "day" as the time from the maximal elevation of the Sun above the horizon during one period of daylight, until the maximal elevation of the Sun above the horizon of the next period of daylight, then a "polar - day" as experienced by such an observer would be one Earth - year long . </P> <P> The concept of a night of almost one month in length has been the subject of the vampire movies Frostbite and 30 Days of Night . In these films, the vampires are drawn to the long duration of darkness, allowing them to openly kill and feed at will . </P>

When is there no sun in the arctic