Ole J Petersen /Visit Greenland
Greenland covers four time zones (GMT +0 to -4), and Greenland lies between latitude 59°N and 84°N. In fact, you will find extreme difference in daylight hours between winter and summer, especially in the north of the Arctic Circle.
Depending where the traveller goes concerning latitude and time of the year the experience contrasting phenomena of the Northern Lights or Midnight Sun is possible to see. Actually between September and March the short daylight hours are an ideal time to view the northern lights, or aurora borealis-amazing displays of light with the in contrast.
In summer months the sun does not completely dip below the horizon-a polar phenomenon known as the midnight sun. Depending on where you go the Midnight Sun can be possible to see from a single day to more months. In Ilulissat, for example, the midnight sun appears from mid-May to late July.