Calculates the number of weeks between two dates, based on a standard five-day work week. It helps in determining the number of full work weeks consisting of Monday through Friday between two specific dates. Weekends (Saturday and Sunday) are excluded from the calculation. This method is commonly used in business settings where only working days count toward deadlines, project planning, payroll, or billing etc. 

For example, if there are 10 working days between two dates, that equates to two standard work weeks, regardless of the total calendar days. It ensures time is measured in a way that aligns with typical work schedules.