using System;

using System.Numerics;

public class Program

{

    public static void Main()

    {

        var saveNow = DateTime.Now;

        Console.WriteLine(saveNow.ToString("O"));

        var myDt = DateTime.SpecifyKind(saveNow, DateTimeKind.Utc);

        Console.WriteLine(myDt.ToString("O"));

    }

}