subtracting times using 24 hour clock
I want to calculate a period of time in 24 hours to be able to work out the
running speed of a machine. This is ok using say 18:00 to 21:00 the resulting
time can be shown as a decimal & the machine output divided by the result,
however how do I calculate the difference over the midnight period ie say
11:30 to 02:00?
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Andrew P.
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