From the Dashboard view, click on Timesheets in left hand side bar > select the week that you need to submit the timesheet for (or any other period, as set up by your company) > the timesheet will already have preset working hours as defined by your manager or system administrator.
Click on date or hours to modify the hours if necessary > click on the geen ✓ mark to make sure the changes are saved.
You can also add a comment if you wish > always remember to click Save changes.
Once you are happy with all times and hours, you need to send the timesheet for approval by clicking on in the top right corner on Submit button. Here you can also check the status of the timesheet (Unsubmitted/Awaiting approval/Approved) & see the name of your timesheet approver.