Struggling how to create a formula to check if a value falls between two
others where one value is another calculation. My data is:

A B C D
1 07:00:00 07:10:00 07:30:00 08:15:00

I want to say " if B1 falls between A1 and A1+15 minutes, then subtract A1
from D1.
There are other conditions I have written that this will be added to.
Look forward to an elegant solution.
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Thanks!!
Don