C# TimeZoneInfo ClearCachedData

public static void ClearCachedData()

//from  w  w w. j a  va 2  s  . c o  m
using System;
public class MainClass{
  public static void Main(String[] argv){  
    TimeZoneInfo cst = TimeZoneInfo.FindSystemTimeZoneById("Central Standard Time");
    TimeZoneInfo local = TimeZoneInfo.Local;
    Console.WriteLine(TimeZoneInfo.ConvertTime(DateTime.Now, local, cst));
    
    TimeZoneInfo.ClearCachedData();
    try
    {
       Console.WriteLine(TimeZoneInfo.ConvertTime(DateTime.Now, local, cst));
    }
    catch (ArgumentException e)
    {
       Console.WriteLine(e.GetType().Name + "\n   " + e.Message);
    }

  }
}