using System;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = "{ \"MyTime\":\"2014-04-20T18:15:11-0700\" }";

        var sourceToken = JToken.Parse(json);

        var myTimeToken = sourceToken.SelectToken("MyTime");

        var myTimeOffset = myTimeToken.ToObject<DateTimeOffset>();

        Console.WriteLine(myTimeToken.ToString());

        Console.WriteLine(myTimeOffset.ToString());

    }

}