You asserted, "Created it all in six days, and rested on the seventh." I won't disagree, but can you give me a hint as to from whose perspective the six days are counted? Here's a hint for you: from God's perspective of 'being' prior to the advent of time (and space and the energy of the entire universe expressed in a bang), six twenty-four hour incriments can appear as 15 billion years appear from 'down the road' (the other end of the spectrum of creation). By God's perspective, we're still in the seventh day perhaps ...
They are clearly indicated to be solar days, both in Genesis, and two places in Deuteronomy, and in the Lord's words in the NT too. Anything else is a humanist stretch job that fails to fit the word.