using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

          CultureInfo provider = CultureInfo.InvariantCulture;

            string current = "05-12-2019";

            DateTime dateTimeConverted = DateTime.ParseExact(current, new string[] { "dd.MM.yyyy", "dd-MM-yyyy", "dd/MM/yyyy" }, provider, DateTimeStyles.None);

            DateTime currentDate = DateTime.Today;

            Console.WriteLine(dateTimeConverted);

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

            Console.WriteLine(currentDate);

            if (dateTimeConverted == currentDate)

            {

                Console.WriteLine("Date Time Match");

            }

            else

            {

                Console.WriteLine("Date Time Not Match");

            }

​

    }

}