FFII SNES - 17 hours (first time through)
FFIV J2E ROM - 36 hours (I abuse fast forward.)
FFIV Chronicles - 23 hours (load times~)
FFIV Advance - 10 hours. (And in two days too.)

I went through 250 alarms on the J2E rom and didn't get a single Pink Tail either. Damn things.