pto time accrual calculation
For Monthly Vacation Accrual. Divide the number of vacation (or PTO) hours that can be accrued (most often 40 or 80 hours) by the number of months in a year. 40 Accrued Vacation Hours/12 months = 3.33 vacation hours earned/month. For Daily Vacation Accrual. Divide the number of hours that can be accrued each year by the number of working days in that year.