Basic Syntax, Conditional Statements and Loops - Lab (13. Holidays Between Two Dates)

using System;
using System.Globalization;

namespace HolidaysBetweenTwoDates
{
    class Program
    {
        static void Main(string[] args)
        {
            DateTime startDate = DateTime.ParseExact(Console.ReadLine(), "d.M.yyyy", CultureInfo.InvariantCulture);
            DateTime endDate = DateTime.ParseExact(Console.ReadLine(), "d.M.yyyy", CultureInfo.InvariantCulture);

            int holidaysCount = 0;

            for (DateTime date = startDate; date <= endDate; date = date.AddDays(1))
            {
                if (date.DayOfWeek == DayOfWeek.Saturday || date.DayOfWeek == DayOfWeek.Sunday)
                {
                    holidaysCount++;
                }
            }

            Console.WriteLine(holidaysCount);
        }
    }
}