Because of Copenhagen's northern latitude, the number of daylight hours varies considerably between summer and winter. On the summer solstice, the sun rises at 04:26 and sets at 21:58, providing 17 hours 32 minutes of daylight. On the winter solstice, it rises at 08:37 and sets at 15:39 with 7 hours and 1 minute of daylight. There is therefore a difference of 10 hours and 31 minutes in the length of days and nights between the summer and winter solstices.