Excel equation help

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Joined
13 Feb 2010
Posts
611
Location
Bournemouth
Hi all
Just wondered if anyone could help with a small issue.
I am using MS Excel to track my work hours, I have a table with start time, finish time and break, then total hours.

Say for example I put start time in A1 Finish time in A2 Break in A3 and total hours in A4

I currently have the sum in total hours =IF(A2<A1,A2+1)-A1, this gives me the answer in hours worked, but im unsure how to take away break time, so if I put down a 30 min break, I need to remove that figure from the hours worked, but if I type -A3 (break column) or -30, i am left with #####

Does anyone have any clues if this is possible please?

Kind regards
Jason
 
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