Working days count refactoring 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

class CalculateWorkingDays
{
    static int currentYear = DateTime.Now.Year;
    static List<DateTime> holidays = new  List<DateTime>
        {
           new DateTime(currentYear, 1, 1),
           new DateTime(currentYear, 3, 3),
           new DateTime(currentYear, 5, 1),
           new DateTime(currentYear, 5, 3),
           new DateTime(currentYear, 5, 6),
           new DateTime(currentYear, 5, 24),
           new DateTime(currentYear, 9, 22),
           new DateTime(currentYear, 12, 24),
           new DateTime(currentYear, 12, 25),
           new DateTime(currentYear, 12, 26),
           new DateTime(currentYear, 12, 31),
        };
    static void Main()
    {
        DateTime startDate = DateTime.Today;
        DateTime endDate = new DateTime(currentYear, 2, 17);
        CalculateWorkDays(startDate, endDate);
    }

    static void CalculateWorkDays(DateTime startDate, DateTime endDate)
    {

        int numberOfAllDays = (endDate - startDate).Days;

        // не е нужна
        //bool isHoliday = false;
        int numberOfWorkingDays = 0;

        for (int i = 0; i < numberOfAllDays; i++)
        {
            startDate = startDate.AddDays(1);
            if (startDate.DayOfWeek != DayOfWeek.Sunday && startDate.DayOfWeek != DayOfWeek.Saturday)
            {
                //for (int j = 0; j < holidays.Length; j++)
                //{
                //    if (startDate == holidays[j])
                //    {
                //        isHoliday = true;
                //        break;
                //    }
                //}
                //if (!isHoliday)
                //{
                //    numberOfWorkingDays++;
                //}
                //isHoliday = false;
                if (!holidays.Contains(startDate))
                {
                    numberOfWorkingDays++;
                }

            }
        }
        Console.WriteLine("Number of working days:{0}",numberOfWorkingDays);
    }
}