Hole in the piston, broke rings, ingested a bolt
(jk not likely any of these)
I've noticed that when my batter is LOW on charge and I try to start it, it acts like it loses time. This has happened to me 2 times now. If I let it run, it will eventually even out, but it is like the computer has lost all learn and has no idea where time should be.
It is scary. The first time it happened I thought something serious broke. Eventually it straightens out but it take a few minutes of driving. It's a weird peculiarity of my Jeep I guess.