C#时间12小时制与24小时制

 class timecover
 {
  static void Main()
  {
   DateTime time = DateTime.Parse("20:16:17");  
   string Time12 = time.ToString("hh:mm:ss");
   Console.WriteLine(Time12);
   //Time12 = 08:16:17  
   string Time24 = time.ToString("HH:mm:ss");  
   //24Time = 20:16:17  
   Console.WriteLine(Time24);
  }
 }