using System;

public class Program

{

    public static void Main()

    {

        DateTimeOffset timeUtc = DateTimeOffset.UtcNow;

        try

        {

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

           DateTimeOffset cstTime = TimeZoneInfo.ConvertTimeFromUtc(timeUtc.DateTime, cstZone);

           Console.WriteLine("The date and time are {0} {1}.", 

                             cstTime.ToString("o"), //wrong

                             cstZone.IsDaylightSavingTime(cstTime) ?

                                     cstZone.DaylightName : cstZone.StandardName); 

            Console.WriteLine(cstTime.Offset); //wrong

            DateTimeOffset finalDate = TimeZoneInfo.ConvertTimeBySystemTimeZoneId(timeUtc, "Romance Standard Time");

            Console.WriteLine(finalDate.ToString("o")); //correct

            Console.WriteLine(finalDate.Offset); //correct

        }

        catch (TimeZoneNotFoundException)

        {

           Console.WriteLine("The registry does not define the Central Standard Time zone.");

        }                           

        catch (InvalidTimeZoneException)

        {

           Console.WriteLine("Registry data on the Central Standard Time zone has been corrupted.");

        }

    }

}