GL Accrual setup during Journal Step

We are switching from a 4-4-5 accounting calendar to a true calendar month accounting calendar.   We are running into issues with figuring out how to do partial accruals for the month when the accounting calendar does not coincide with the payroll calendar.  Ex: For our biweekly payrolls, we will run the final January payrolls on 1/24 with a check date of 1/27.  We need to accrue for the 30th and 31st in January.  We won't run payroll again until 2/7 for a check date of 2/10, which is after we have closed out the month of January.  How do we