=IF((F3-E3)*24>6,(F3-E3)*24-1,(F3-E3)*24)
To assist Dave and/or Mark:
=IF(AND(ISNUMBER(E3),ISNUMBER(F3)),Dave's Or Mark's Formula,0)
Dale: I mean no offense, but why didn't you continue the original thread you started? I think Dave or Mark wouldn't have missed your new question. Again no offense intended.
Aladin
SORRY I'M NEW AT THIS AND I JUST LEARN BY TRIAL AND ERROR
Hi Dale
Sometimes you are better off posting a new question like you have, so that others will help.
You could use Aladins addition or enter an Array formula:
=IF(ISNUMBER(A1:B1),IF((B1-A1)*24>6,(B1-A1)*24-1,(A1-B1)*24),"")
Arrays must be entered by push Ctrl+Shift+Enter
Dave
OzGrid Business Applications