To adjust pay periods in Agendrix you must:
Go to the "Settings" tab in the main menu
Click on "Time and Attendance"
Click on the "Pay Period" subcategory
Select the pay frequency and payroll period start and click on "Save"
Note: Before doing this change, you must make sure to finalize prior pay periods if you do not want them to be modified. All the time entries that were approved but non-finalized will be reset (and will have to be approved again.)