I am trying to get the total time that it took from the date and time
something was inducted until the date and time it was completed. I have seen
a few suggestions that come close, but not exactly correct.

I.E. cell A1 = 01/30/2006 23:45
cell B1 = 02/02/2006 07:00

cell C1 input the formula =B1-A1 and change the format to M:DD:HH:MM

But this usually comes back with a figure like 1:02:07:15, which to me is
wrong as it is stating 1 month, 2 days, 7 hours and 15 minutes. Everything
is okay except for the month, which should be zero, as it really only took 2
days, 7 hours and 15 minutes.

If I do the same but change the second data to 05/22/2006 07:00 then I get a
figure of 4:20:07:15. This again appears wrong to me. It should only be 3
months (FEB, MAR, APR), 21 days, 7 hours 15 minutes.

Any advice is welcomed.