"Next business day" calculates two business days if the start time is on weekends, holidays, or before business hoursDescriptionNext business day calculates two business days if the start time is on weekends, holidays, or before business hours.Steps to Reproduce Navigate to Scripts - Background. Run the following script include. For more information, see the product documentation topic Using DurationCalculator to calculate a due date. var dc = new DurationCalculator(); var tz = "Europe/Brussels"; dc.setSchedule("090eecae0a0a0b260077e1dfa71da828", tz); //8-5 weekdays excluding holidays dc.setStartDateTime("2016-07-01 13:26:40"); dc.calcRelativeDuration("3bfa9bd10a0a0b5200c18037fbaa9a2c"); //End of next business day gs.print(dc.getEndDateTime()); Run the same script, but change the value of dc.setStartDateTime("");. The output shows unexpected relative end time. Note that July 4 in this scenario is a holiday. SET START TIME OUTPUT COMMENT dc.setStartDateTime("2016-07-01 13:26:40"); *** Script: 2016-07-05 15:00:00 This is correctdc.setStartDateTime("2016-07-02 13:26:40"); *** Script: 2016-07-06 15:00:00 This is not correct, expected output: 2016-07-05dc.setStartDateTime("2016-07-03 13:26:40"); *** Script: 2016-07-06 15:00:00 This is not correct, expected output: 2016-07-05dc.setStartDateTime("2016-07-04 13:26:40"); *** Script: 2016-07-06 15:00:00 This is not correct, expected output: 2016-07-05dc.setStartDateTime("2016-07-05 05:26:40"); *** Script: 2016-07-06 15:00:00 This is not correct, expected output: 2016-07-05, because the business time has not occured yet dc.setStartDateTime("2016-07-05 09:26:40"); *** Script: 2016-07-06 15:00:00 This is correct WorkaroundCreate a new Relative Duration[cmn_relative_duration] in order to avoid having the calculation be two days when the current time is outside of the schedule. Use the following script: /////// Start Script var days = 0; var initialStartDateTime = calculator.startDateTime; if (calculator.schedule.isInSchedule(calculator.startDateTime)) days=1; else // Making sure the calculation is not affected when start time is outisde the schedule but after a daily end (example, Friday 19:00). calculator.startDateTime.add(calculator.schedule.whenNext(calculator.startDateTime, calculator.timezone)); calculator.calcRelativeDueDate(calculator.startDateTime, days, "17:00:00"); calculator.startDateTime = initialStartDateTime; /////// End Script Related Problem: PRB1032810