Originally posted by Newjak
Unless the Hulk was standing in the exact spot and stance for more than a few minutes I'm going to say no real amount of time passed.
Oh obviously, its either minutes or no time has passed! Can you tell me how much time passed between first and second panel? By this argument when superman said "very quickly", he meant nanoseconds since he was shown doing that in exact one panel. Either way both are too vague to say how fast were these two going.