Specifies the number of average working days per year. This should correlate to the specified workinghours and vacation. It affects the conversion of working hours, working days, working weeks, working months and working years into each other.

When public holidays and leaves are disregarded, this value should be equal to the number of working days per week times 52.1428 (the average number of weeks per year). E. g. for a culture with 5 working days it is 260.714 (the default), for 6 working days it is 312.8568 and for 7 working days it is 365.