C# Add Two Dates

using System;

namespace Program
{
    class Program
    {
        static int Main()
        {
            DateTime SDate = new DateTime(2018, 10, 7);

            Console.WriteLine("Starting Date : {0}", SDate);

            DateTime EDate = SDate.AddDays(10);
            Console.WriteLine("Ending Date   : {0}\n", EDate);

            Console.ReadLine();
            return 0;
        }
    }
}

 

Output