Your timesheet goes through many different stages


StatusMeaning
Not Opened
you have not accessed the timesheet to submit time worked
Pending Submission
you have accessed the timesheet, saved the timesheet but not yet submitted for Approval
Pending Approval 
you have entered time worked into your timesheet and submitted it for Approval but it's yet to be approved
Ready for Interpretation
your timesheet has been approved, now it's awaiting payroll to action
Finalised
payroll have reviewed your timesheet and it's waiting to be paid


Did not Work (Processed)
No times have been entered into the timesheet indicating you dud not work for the period and has been reviewed by Payroll
Did not Work (Un-Processed)
No times have been entered into the timesheet indicating you dud not work for the period and has not been reviewed by Payroll