""Chronos"" (details from "Trionfi del Tempo (Triumph of Time) - 3rd of 4 Panels ") (see related A | B | C), 1480 Jacopo di Arcangelo (known as Jacopo del Sellaio) (1442 - 1493) Bandini Museum, Fiesole (Metropolitan Florence) , Toscany, Italy
"Father Time" keeps the pendulum moving and the black and white dogs are allegorical day and night.