Was God there?
Did God inspire Scripture?
Does Scripture make unambiguous statements on the time line of creation (geneologies, statements, etc?)
I’m not convinced that the Bible ties the time of creation down tight enough where we can say something for sure. If you disagree, that’s okay. Some people see it differently.
I don’t think you are “saved or not” based on your acceptance of a certain date of Creation or age of the Earth.
For this reason, I don’t get caught up in the discussion. It is of interest to me, but I don’t have a burden to nail it down right. I have never thought you could.