using System;

using System.Text.Json;

public class Program

{

    public static void Main()

    {

        var now = DateTime.UtcNow;

        string utcSerialisedDate = now.ToString("yyyy-MM-ddTHH:mm:ss.FFFZ");

        Console.WriteLine(utcSerialisedDate);

        var result = JsonSerializer.Deserialize<DateTime>($"\"{utcSerialisedDate}\"");

        Console.WriteLine(result.Kind);

    }

}