using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        var now = DateTime.Now;

        Console.WriteLine(now.ToString("dd.MM.yyyy"));

        var example1 = now.ToString("MM/dd/yyyy");

        Console.WriteLine(example1);

        var readTime1 = DateTime.ParseExact(example1, "MM/dd/yyyy", CultureInfo.InvariantCulture);

        Console.WriteLine(readTime1.ToString("dd.MM.yyyy"));

        var example2 = now.ToString("dd/MM/yyyy");

        Console.WriteLine(example2);

        var readTime2 = DateTime.ParseExact(example2, "dd/MM/yyyy", CultureInfo.InvariantCulture);

        Console.WriteLine(readTime2.ToString("dd.MM.yyyy"));

    }

}