using System;

public class Program

{

    public static void Main()

    {

        TimeZoneInfo tziNyc = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");

        TimeZoneInfo tziFrance = TimeZoneInfo.FindSystemTimeZoneById("Romance Standard Time");

        DateTime dtNycUnspecified = DateTime.SpecifyKind(new DateTime(2022, 10, 12, 11, 38, 0), DateTimeKind.Unspecified); // NYC

        DateTime dtDestNyc = TimeZoneInfo.ConvertTime(dtNycUnspecified, tziNyc, tziNyc);

        DateTime dtDestFrance = TimeZoneInfo.ConvertTime(dtNycUnspecified, tziNyc, tziFrance);

        DateTime dtUtcFromNyc = TimeZoneInfo.ConvertTime(dtDestNyc, tziNyc, TimeZoneInfo.Local);

        DateTime dtUtcFromFrance = TimeZoneInfo.ConvertTime(dtDestFrance, tziFrance, TimeZoneInfo.Local);

        Console.WriteLine("NYC \"{1}\" = {0}", dtDestNyc, tziNyc.StandardName);

        Console.WriteLine("Server from NYC (expecting UTC) \"{1}\" = {0}", dtUtcFromNyc, TimeZoneInfo.Local.StandardName);

        //Console.WriteLine("Server from FR (expecting UTC) \"{1}\" = {0}", dtUtcFromFrance, TimeZoneInfo.Local.StandardName);

        Console.WriteLine("FRANCE \"{1}\" = {0}", dtDestFrance, tziFrance.StandardName);

        //var test = DateTime.SpecifyKind(dtDestFrance, DateTimeKind.Unspecified);

        //Console.WriteLine("FRANCE to UTC = {0}", test.ToUniversalTime());

        Console.WriteLine("Are equal? {0}", dtUtcFromFrance == dtUtcFromNyc);

    }

}