using System;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        string dateString = "05/29/2015";

        string format = "MM/dd/yyy";

        DateTime date = DateTime.ParseExact(@"05/29/2015", @"MM/dd/yyy", CultureInfo.InvariantCulture);

        Console.WriteLine(date);

    }

}