using System.Collections.Generic;
using System.Globalization;
public static void Main()
var result = "2020-01-16T14:29:17.9743131Z0";
Console.WriteLine(result);
var format = "yyyy-MM-dd'T'HH:mm:ss.fffffffZ0";
Console.WriteLine(DateTime.ParseExact(result, format, CultureInfo.InvariantCulture).ToString());