Convert a time from one time zone to another in CSharp

//  ww w.  j av  a2  s . c  o m
using System;
public class MainClass{
  public static void Main(String[] argv){  
   DateTime hwTime = new DateTime(2007, 02, 01, 08, 00, 00);

   TimeZoneInfo hwZone = TimeZoneInfo.FindSystemTimeZoneById("Hawaiian Standard Time");
   Console.WriteLine("{0} {1} is {2} local time.", 
           hwTime, 
           hwZone.IsDaylightSavingTime(hwTime) ? hwZone.DaylightName : hwZone.StandardName, 
           TimeZoneInfo.ConvertTime(hwTime, hwZone, TimeZoneInfo.Local));

  }
}