How can we set the invoice/transaction date 30 days prior to the bill to date on an arrears contract

Our Japanese operating unit has a requirement to use the Arrears invoicing rule for accounting rules purposes.  However, we need to bill the customer at the beginning of the month and not the end of the month as customers take a long time to pay bills. 

Example, Contract line is set to Arrears invoice (in order to utilize the unbilled auto accounting rule in AR).

Bill Start Date is 01-JUL-2016 and Bill End Date is 31-DEC-2016

The Offset Days Interface Date is set to -184 so we can generate the invoice on 01-JUL-2016 and have the revenue recognized each month.