Clarence
See Chip Pearson's site for calculating with times and dates.
http://www.cpearson.com/excel/datetime.htm#AddingDates
Gord Dibben MS Excel MVP
>I want to use real clock times over a 24 hour period/7 days to calculate
>individual daily/weekly hours and total weekly store hours. I must be doing
>something wrong because Excel won' calculate on a time formatted cell.