Simply:

=A2-A1+A4-A3

--
HTH

Sandy
In Perth, the ancient capital of Scotland
and the crowning place of kings


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"Pattio" wrote in message
...
I have 5 cells in a row (A1 - A5). I need to subtract, in military time,
A1
from A2 and then A3 from A4 and the total should be in A5 as standard
time.
Cells A1-A4 are formatted as hhmm and cell A5 is formatted as hh:mm.