"Four Hours of the Day: Night" is a wood engraving by French artist Adrien Lavieille that depicts a nocturnal urban scene, likely from the 19th century. The work exemplifies the technical precision and fine detail characteristic of the wood engraving medium, which allows for delicate lines and intricate tonal variations. As part of a series exploring different times of day, this composition captures the atmospheric qualities of nighttime through careful use of light and shadow.