Broadly speaking, each location on Earth experiences approximately half a year of daytime and half a year of nighttime. Near the equator, the lengths of day and night remain fairly constant throughout the year, each lasting about 12 hours. The farther you move from the equator, the more this balance shifts daily. For instance, in New York City, daylight extends to about 15 hours in June but contracts to around 9 hours by December. At the North Pole or South Pole, daytime and nighttime can extend to the full 24 hours. This occurrence is known as polar day and polar night. The polar day is often…