In order to enter working hours, click on the clock symbol in the upper right-hand corner of your screen (activate working hour tracking for your account if this symbol does not appear).

A pop-up window will appear after clicking on the clock symbol in which you can select a category and the number of hours worked.
You also have the option of assigning your working hours to a specific customer and/or order along with a short description of the work performed.

After clicking "save" your working hours have been recorded and can be summarized by category, customer, and order.