It would be a mistake to confuse what is written in Genesis with the Christian Fundamentalist claim that the Bible exclusively supports their belief that all physical creation was produced in six 24-hour earth days.

The Genesis account shows that the term "day" is used in a flexible sense. In Genesis 2:4, the entire period of six days described in the previous chapter is referred to as a single day. Logically, these were not literal 24-hour days, but long periods of time.