Question: how to calculate in excel working hours?
Answer: In A1, enter Time In.
In B1, enter Time Out.
In C1, enter Hours Worked.
Select A2 and B2, and press [Ctrl]1 to open the Format Cells dialog box.
On the Number tab, select Time from the Category list box, choose 1:30 PM from the Type list box, and click OK.
Right-click C2, and select Format Cells.