using System;

public class Program

{

    public static void Main()

    {

        TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time"); // Use "America/Chicago" on non-Windows systems

​

        Console.WriteLine("Id:             " + tzi.Id);

        Console.WriteLine("DisplayName:    " + tzi.DisplayName);

        Console.WriteLine("StandardName:   " + tzi.StandardName);

        Console.WriteLine("DaylightName:   " + tzi.DaylightName);

        Console.WriteLine();

​

        DateTime winterDate = new DateTime(2020, 1, 1);

        DateTime summerDate = new DateTime(2020, 7, 1);

​

        TimeSpan winterOffset = tzi.GetUtcOffset(winterDate);

        TimeSpan summerOffset = tzi.GetUtcOffset(summerDate);

​

        bool winterIsDst = tzi.IsDaylightSavingTime(winterDate);

        bool summerIsDst = tzi.IsDaylightSavingTime(summerDate);

​

        Console.WriteLine("Winter Offset:  " + winterOffset + "  IsDST:  " + winterIsDst);

        Console.WriteLine("Summer Offset:  " + summerOffset + "  IsDST:  " + summerIsDst);

    }

}