By default, the Month on Month report is scheduled to export at 11:00 pm on the 10th of each month. This ensures that any sort of checkin lags have been completed by the time of processing the report.
However, if you need to change the default export time, you can choose a different day of the month and time of day in its scheduling settings located in Support > Schedules > Month on Month Schedule.
If further assistance is required, submit a ticket to Punchh Support. (For help submitting a ticket, click here)