A basic unit in workpower productivity and cost measurement; it is the amount of  productive time provided by one employee working full-time for 1 year. For purposes of estimating
            time available to do work in 1 year, holidays, sick, annual, and administrative leave
            must be excluded. For example, suppose an employee's hourly pay rate is figured on
            the basis of 2,080 hours per year (364 days less 104 weekend days), and assuming his
            nonwork time for the year is as follows:
         
         
            
               
                  
                  
               
               
                  
                  
                     
                     | Holiday | 68.0 hours | 
                  
                     
                     | Sick Leave | 75.0 hours | 
                  
                     
                     | Annual Leave | 155.7 hours | 
                  
                     
                     | Administrative Leave | 4.8 hours | 
                  
                     
                     | Total Nonwork Time | 303.5 hours | 
               
            
          
         Subtracting the total nonwork time of 303.5 hours from the base of 2,080 hours for
            the year leaves 1,776.5 hours available for work, or 1 “productive” work-year. Calculation of average productive hours in an agency work-year, of course,
            requires that it be based on total agency data and not computed for each employee
            individually.