When creating ad hoc reports with multiple recurring date ranges the processed report populates with the last processed day by default. There is no quick way to verify for which time frames the report was processed unless you either 1) go to 'Admin' (if you have access) and search for the report to view the report details or 2) you make a copy of the report and then check the calendar of the copied report to verify the reporting date ranges. It would be much more helpful to add the report settings either as a popup when you hover over 'Dates' or grayed out in the configuration window when you click on 'Dates'.