using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(System.DateTime.Now.Subtract( new DateTime(2021,09,13)).TotalDays);

        Console.WriteLine(Convert.ToInt32( System.DateTime.Now.Subtract( new DateTime(2021,09,13) ).TotalDays ));

        Console.WriteLine("-----------------------");

        Console.WriteLine(System.DateTime.Now.Subtract( new DateTime(2021,09,13,10,0,0)).TotalDays);

        Console.WriteLine(Convert.ToInt32( System.DateTime.Now.Subtract( new DateTime(2021,09,13,10,0,0) ).TotalDays ));

        Console.WriteLine("-----------------------");

        Console.WriteLine(System.DateTime.Now.Subtract( new DateTime(2021,09,13,20,0,0)).TotalDays);

        Console.WriteLine(Convert.ToInt32( System.DateTime.Now.Subtract( new DateTime(2021,09,13,20,0,0) ).TotalDays ));

        Console.WriteLine("-----------------------");

    }

}