In old legal records, you can sometimes find that property was sold “bij kaarsenbrand” [by burning candle]. It does not mean that it was sold at night, but rather that the property was sold in an auction that lasted as long as a candle burned. If the candle went out, the highest bid at that time was the winning bid. It made sure that auctions would not drag on.

Boy lighting an old woman’s candle, 1646. Credits: Jakob Stahl, collection Rijksmuseum (public domain)