nDay-age (divine-age) theory - each “day” in Genesis is a long geological age, thus interjecting millions/billions of years into
the Genesis
account
nPictorial (or revelational) day theory - God revealed to Moses, through visions, what God had created.
Moses then recorded each vision as a day
nGap theory (creation/ruination/re-creation
theory or
restitution theory) - God created
a perfect world,
which was consequently destroyed (perhaps because of a war Satan had with God) and then re-created and re-populated