Most atheists will never accept 6day creationism, not even if we could find proof of it somehow. Like a creationist will never accept evolutionism, not even if we would find proof of it somehow. The reason is that it's not a simple scientific opinion we have, but it is because our view and our way of life depends on it. Of course it's not as black/white as I depict it above, but it's not far from it either.