Darkness, light and sleep
Greenland is changing away from the time zone it would otherwise belong to geographically and that has brought up a new concern about how it affects sleep – so much so that politicians have looked into sleep studies from Iceland, who are researching the same issue.
The concern of sleep patterns is connected to light and darkness. Just like summer and winter time, time zones are a part of determining the pattern of our days following the patterns of the sun.
There are many misconceptions about the light and darkness of Greenland, one of the biggest ones being that Greenland has 6 months of darkness.
In Qaanaaq, the most northern city in Greenland, the polar darkness lasts from the 24th of October to the 17th of February. During this time the sun does not rise in the city, but that does not mean continual pitch black darkness in this period. The sun will drop just below the horizon in the beginning, and the ice and snow lights up the city.
See what the shortest day looks like in different regions here.