CS_0022_TimeSpan

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace string1

{

    class Program

    {

        static void Main(string[] args)

        {

            DateTime myValue = DateTime.Now;

            Console.WriteLine(myValue.AddDays(-3).ToShortDateString());

            Console.WriteLine(myValue.Month.ToString());

            DateTime myBirthday = new DateTime(1979, 11, 27);

            Console.WriteLine(myBirthday.ToShortDateString());

            DateTime myBirthday2 = DateTime.Parse("11 / 27 / 1979 ");

            TimeSpan myAge = DateTime.Now.Subtract(myBirthday2);

            Console.WriteLine(myAge.TotalDays);

            Console.ReadLine();

        }

    }

}

Results:

12/21/2018

12

11/27/1979

14272.4808734722