using System;

using System.Collections.Generic;

using System.Linq;

using System.Xml.Linq;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        var result = "2020-01-16T14:29:17.9743131Z0";

        Console.WriteLine("dateTime : {0}", result);

        Console.WriteLine("result : {0}", DateTime.Parse(result, null, System.Globalization.DateTimeStyles.RoundtripKind));

    }

}