What is Midnight Sun?

Midnight Sun is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle, when the sun remains visible even at midnight

What are Polar Nights?

The opposite phenomenon, Polar Nights, occur in the winter months, when the sun stays below the horizon throughout the day

The coordinates used for this mod are taken from Alert, which is located in the Qikiqtaaluk Region of Nunavut, Canada.

Alert experiences midnight sun from April 7 to September 4, and polar nights from October 14 to February 28. There are two relatively short periods of twilight from about February 13 to March 22 and the second from September 19 to October 22.