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.