Time didn’t exist before God created it, and “doing all that time” somehow implies that God experiences time in a linear fashion like we do... why make that assumption?
I never assumed that God experiences time in a linear fashion. If you go back deep in my post history (I don’t wanna do it either) I’ve stated at least on two occasions that time as a linear construct is for man to understand and God exists outside that construct. We cannot fully comprehend the infinite. For our meager understanding of infinite time, we as mortal humans still function in a linear fashion.