Genesis 1-3 gives the only account of creation by its observer who is also the Author and the Creator.
The difference between my assertion and the one linked as well as many others is simply this:
The others aver that Genesis 1-3 applies to the creation of the physical realm only and some, to earth specifically; for them, Adam's clock begins when he is formed from the dust of the earth.
Gosh that was eloquent! Made my evening after staying up too late ...