using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        string[] formats= 

        {

            "ddd MMM d HH:mm:ss CDT yyyy", 

            "ddd MMM d HH:mm:ss CST yyyy"

        };

      string[] dateStrings = 

      {

          "Wed Sep 27 06:29:44 CDT 2017",

          "Wed Oct 4 06:27:44 CDT 2017",

          "Sat Oct 14 06:33:15 CDT 2017",

          "Wed Oct 18 06:34:06 CDT 2017",

          "Wed Nov 8 06:30:46 CST 2017",

          "Sun Nov 19 19:44:15 CST 2017"

      };

      DateTime dateValue;

​

      foreach (string dateString in dateStrings)

      {

         if (DateTime.TryParseExact(dateString, formats,

                                    new CultureInfo("en-US"),

                                    DateTimeStyles.None,

                                    out dateValue))

            Console.WriteLine("Converted '{0}' to {1}.", dateString, dateValue);

         else

            Console.WriteLine("Unable to convert '{0}' to a date.", dateString);

      }

    }

}