In cell A1 if you have the date and time in excel date/time format use the
below formula in cell B1 which adds up 75 hours to the date/time in cell A1

=A1+(75/24)

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Jacob Skaria


"ashwani" wrote:

i want to know how to calculate date time in hours
suppose 28/10/2009 10:00 am calculate transit hours 75 hrs = total calculate
the date & time pls help n suggest