using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Diagnostics;

using System.IO;

using System.Threading;

using System.Collections.ObjectModel;

using System.Reflection;

using System.Runtime.Serialization;

using System.Data;

using System.ComponentModel;

using System.Globalization;

using System.Collections.Specialized;

using System.Runtime.InteropServices;

using System.Text.RegularExpressions;

using System.Net;

using System.Runtime.Serialization.Formatters;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;

// https://stackoverflow.com/questions/43130444/parsing-a-json-date-into-a-c-sharp-datetime

​

    public class Program

    {

        public static void Main()

        {

            // String literal syntax taken from 

            // http://stackoverflow.com/questions/39669511/cant-parse-json-data-to-net-datetime

            string sa = "/Date(1409202000000-0500)/";

            DateTime dt = new DateTime();

            dt = parseDateTimeFromStringLiteral(sa);

            Console.WriteLine(dt);      

        }

        private static DateTime parseDateTimeFromStringLiteral(string str){

            return JsonConvert.DeserializeObject<DateTime>(@"""" + str + @"""");

        }

    }

​