You said it was non-literal (see above). A day in Alaska or Antarctica is the same length as a day in Canaan or Egypt. The world doesn't spin at a faster or slower rate there (though the distance traveled is smaller so it is technically rotating slower). The RPMs, so to speak, are the same.I agreed that yom on the context of the creation story in genesis is to be understood as 1 day as in Canaan or Egypt (not Alaska or Antartica).
They don't start with the same culture though. ANE culture is not monolithic. And you are assuming they are using the same manner to get their meaning across. I don't think you can assume that. Scripture is of a different character than these other documents, something that Enns and others do not fully reckon with.You're saying that they all start off with the same truth and the other two documents embelish it. I say they all start off with the same culture and try to get their meanings across in the same manner.