But science hasn't discovered anything that's infinite yet. It's still just theory. As far as I can tell from the science literature I read, it's getting increasingly unlikely that we ever will.
Also I think you've mixed up your terminology when it comes to time. Time is a relative function of movement. If we accept the theory of the Big Bang, then "before" it there was no time. Impossible for us to comprehend, but not in any way infinite.
I'm not an ace at general relativity so please correct me if I got anything wrong here.
I've stopped picking on religious, (from the popular supernatural religions). They're wrong on so many levels. Why nit pick about details and degrees of wrongness? It's just cruel.