The beginning of the long night ... November 18th.

In Utqiagvik, Alaska, the sun sets on November 18th and does not rise above the horizon again until January 23rd, resulting in 66 days, mol, of polar night.
Utqiagvik, formerly known as Barrow, is one of the northernmost cotoes in the world and the northernmost city in the United States. The name is a Native Eskimo Inuit dialect, Iñupiaq. The name was changed in 2016.
The U.S. acquired Alaska in 1867. The U.S. Army established a meteorological and magnetic research station in Utqiagvik in 1881.
Due to permafrost, there are no paved roads in Utqiagvik and there are no roads connecting Utqiagvik to the rest of Alaska. Alaskan Airlines serves the community through the Wiley Post - Will Rogers Airport.