In a Report Definition report, you can populate a column of the report using an nested SQL function and Standard functions available in the Pega-RULES:BusinessCalendar library are available which use business day and holiday information.
Standard functions in the Pega-RULES:BusinessCalendar library use business day and holiday information. For example, you can compute the number of business days (based on a specific calendar) between two dates. Business days are sometimes called work days.
If your application includes multiple calendar data instances, a non-business day for some users may be a business day for others.