Check if a particular date and time is invalid in CSharp

//w  ww  .j  a  v a2  s .c  o m
using System;
public class MainClass{
  public static void Main(String[] argv){  

    DateTime baseTime = new DateTime(2007, 3, 11, 1, 59, 0, DateTimeKind.Unspecified);
    DateTime newTime;
    

    TimeZoneInfo pstZone = TimeZoneInfo.FindSystemTimeZoneById("Pacific Standard Time");
    
    for (int ctr = 0; ctr < 63; ctr++)
    {
       newTime = baseTime.AddMinutes(ctr);
       Console.WriteLine("{0} is invalid: {1}", newTime, pstZone.IsInvalidTime(newTime));
    }

  }
}