using System;

public class Program

{

    public static void Main()

    {

        var start = DateTime.Parse("2019-07-23T22:51:49.6465475-07:00");

        var end = DateTime.Parse("2019-07-24T08:58:19.9798448-07:00");

        var duration = end - start;

        Console.WriteLine(duration);

    }

}