Hallo Emile,

Am Thu, 14 Mar 2013 12:38:10 -0700 (PDT) schrieb :

I want to calculate only the hours used between 0500 - 2200
When i use above times on the same date the result should be 17. It now gives 10 as a result.

try:
=IF(INT(B1)=INT(A1),(11/12-MOD(A1,1))*24,(B1-A1)*24-(INT(B1)-INT(A1))*7)


Regards
Claus Busch
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Win XP PRof SP2 / Vista Ultimate SP2
Office 2003 SP2 /2007 Ultimate SP2