Final answer:
The poles, specifically the Arctic and Antarctic Circles, experience the greatest change in daylight hours, fluctuating between 24 hours of daylight during their respective summers and 24 hours of darkness during their winters.
Step-by-step explanation:
The position on Earth that experiences the greatest change in the number of daylight hours during the year is at the poles, specifically the Arctic Circle in the north and the Antarctic Circle in the south. During the summer solstice, which occurs around June 21st, the North Pole is in constant sunlight, often referred to as the midnight Sun, while the South Pole experiences 24 hours of darkness. Conversely, during the winter solstice around December 21st, the situation is reversed, with the Arctic Circle in complete darkness and the Antarctic Circle basking in continuous daylight.
At the equinoxes, which occur around March 21 and September 21, every place on Earth receives about 12 hours of sunshine and 12 hours of night. However, the poles go from extreme daylight fluctuations, from 24 hours of sunlight to 24 hours of darkness, which is the most variance anywhere on the planet.