Quote from Essentia:
I just wanted to point out that this isn't quite correct. When you die in FFVI and go back to your previous save, the in-game clock doesn't get reset. So if you take the time to level everyone up to 99, all that time will still be counted on the timer.
Really? I seem to remember there being Japanese runs that used the trick and thus managed to get very low game clock times because of it.