You can modify the default business time export for your business day directly on your CAKE Point Of Sale by going to:
Main Menu > System Options > Payroll > Payroll Start of Week/Day in CAKE and change that time to the start time for your business (the End Time will be the same time the following day).
For example, set the above to 3am and your sales data exported to Shogo will be based on a business day from 3am to 3am, your local time.