On which day were the heavenly bodies created according to Genesis?

The creation of the heavenly bodies according to Genesis occurs on the fourth day of creation. This is outlined in the biblical account, specifically in Genesis 1:14-19, where it describes how God created the sun, moon, and stars to separate day from night, as well as to serve as signs for seasons, days, and years. This day marks the completion of the celestial elements that govern time and light on Earth, indicating their significance in the created order. Understanding this context is crucial as it highlights the role of these heavenly bodies not only in terms of physical illumination but also in organizing the temporal aspects of life as described in the creation narrative.