Please see the guide on how to toggle on time tracking. As well as adding a single timesheet can also be added on a weekly basis. Before adding timesheets create some tasks and projects.
Step 1.
Navigate to Tools > Time Tracking > Weekly view.
Use the search filters to set the appropriate date. Fill in the details of the time sheet, the required fields are client, projects and task.
Step 2.
Define the number of hours, minutes and seconds worked.
The time sheets can either be marked as billed or unbilled. If the time sheets are marked as unbilled you can convert the time sheet into a draft invoice from the Tools > Time Tracking > Generate Invoice menu once completed.
Click on the Update All button to complete.