In case we're not on the same page here, I was talking about the "hours could seem like days" thing.
But yeah, "blinded by his obsession", I guess that makes sense. The problem is that the obsession is all there is to Khan in this movie. The superior strength and intellect that you would expect, from watching Space Seed, feels lacking. At least The Final Frontier had a threatening villain. Khan is practically Charles Manson In A Spaceship.
Hey, Space Seed, that reminds me of another problem I have with the movie. Chekov talks about his experience when Khan was on the Enterprise, but Chekov wasn't in that episode -- in fact, Chekov wasn't in any season 1 episode. He was not even on the show by the time Space Seed aired.
The whole thing starts off with Chekov landing on the wrong planet. Because one of the planets in that system exploded or something, and knocked the other planets about so they were arranged differently, so they landed, on the wrong, fucking, planet. I'm pretty sure that if something like that happened at such a time that the light reached Earth TODAY, then NASA would know about it. So how is it possible that some instrument on some starbase SOMEWHERE didn't pick it up? How did the ship Chekov was on not notice that there were only 5 planets instead of 6 when they entered the system? The implausibility of this setup rivals that of Spock's Brain.