Excel time formulas

blkane

New Member
Joined
Nov 18, 2011
Messages
47
Hi,

I'm looking for a simple formula that will calculate the difference between a start and an end time then subtract 30 min.

So, for example, the start time is 7:00 am and the end time is 4:00pm. I can calculate the time difference but I don't know how to then modify the formula to subtract 30 min. I feel like I'm missing something very simple.

Thanks
Brenda
 

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Three semi-colons will hide the value in the cell. Although most people use white font instead.

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