Day and Night

Faerun's days are 24 hours long, divided into night and day by the rising and setting sun. In southern lands such as Halruaa, the length of the night does not vary much with the season, and 12 hours of light and 12 hours of dark is the rule year-round. In the north, the days are markedly longer in summer and shorter in winter. Midwinter day in Silverymoon sees little more than 8 hours of daylight, and Midsummer almost 16.

Ten days comprise a Faerunian week, also known as a tenday or, less commonly, a ride. The individual days of the tenday do not have names. Instead, they're referred to by number: first-day, second-day, and son on. Most folk start counting using their thumb as first-day, but halflings are famous for using their pinkies to count first-day, so much so that the phrase "counting like a halfling" means that someone is being different just to be difficult.