The Fourth Day (Dies IV), from the series The Creation of the World

Apollo stands prominently on the left as a muscular youth with a bow, gesturing toward the heavens, while Diana stands to the right with a crescent moon upon her head. Between them, a figure carries an hourglass on their head to represent the beginning of measured time, while a dark figure representing the night and stars follows behind Diana. The scene is set within a circular frame emerging from primordial clouds, capturing the moment light was divided into day and night.

This work reflects the Neoplatonic synthesis of biblical narrative and classical mythology, where planetary deities serve as the ordering principles of the cosmos. It illustrates the 'Great Chain of Being' and the Renaissance belief that the movements of the heavenly luminaries directly influence the sublunary world through astrological 'virtues.'