Hi
you have data in columns e and d that looks like times but in fact are not.
if you replace your data with true times then in column L the formula
is all that you need.
The format for Time is under custom and looks like "hh:mm:ss" just delete the ":ss" and click ok.
Your original data will be displayed as "00:00" because Excel thinks that any number over zero is a date.
For hours you need to divide by 24 so 11 am = 11/24 an d11 pm =s 23/24
For minutes you need to divide by 1440 so 53 minutes = 53/1440
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