Days are based of where the earth is facing during it’s spin
Years are based on rotations around the sun
Seasons are based on which side of the earth is facing the sun or not
But months and weeks are just abstract concepts with nothing to compare it to
Isn’t a month one orbit of the moon around earth?
It is. I’m gonna have to go Google what a week is now though.
Guess it’s just based on the Bible. Huh.