Pay Period Calendar 2024 Biweekly 2021. The biweekly payroll calendar is a resource defining the start and end dates of pay periods as well as pay dates. Within this date range, we count every 14 days as a pay period.

Depending on the calendar year, there are sometimes 27 pay periods, which can increase. For example, under a given agency’s payroll cycle, the biweekly pay period covering december 20, 2020, through january 2, 2021, may be the first biweekly pay period with a payroll pay.