In PostalPoint, reports are generated for a particular date or date range, covering the entire dates you select, from 12:00am to 11:59pm.
However, some stores might have a special situation where reports need to cover a different time range.
To that end, in Settings → Advanced → Manual Configuration you can enter the key report_end_of_day_time and for the value enter the time of day reports should start and end at instead of midnight. Use 24-hour time, such as "09:30" for 9:30 A.M. or "15:00" for 3 P.M.
Setting the report_end_of_day_time to 15:00 will cause reports to cover from 3 P.M. on the day before the start date you select, to 3 P.M. of the end date you select. If you select today's date on the Reports screen, you will see results from yesterday at 3 P.M. to today at 3 P.M.