Time difference logger

Did you ever have to log time taken by some chunk of code? I hate writing log statements every where to get time difference - so I came up with this :

   1: using System;

   2: using System.Collections.Generic;

   3: using System.Linq;

   4: using System.Text;

   5: using System.Threading;

   6:  

   7: namespace TimeLogger

   8: {

   9:     class Program

  10:     {

  11:         static void Main(string[] args)

  12:         {

  13:             using (TimeLogger tl = new TimeLogger("sleeper"))

  14:             {

  15:                 Thread.Sleep(3000);

  16:             }

  17:         }

  18:     }

  19: }

   1: using System;

   2: using System.Collections.Generic;

   3: using System.Linq;

   4: using System.Text;

   5: using System.Diagnostics;

   6:  

   7: namespace TimeLogger

   8: {

   9:     public sealed class TimeLogger:IDisposable

  10:     {

  11:         private Stopwatch sw;

  12:         private string codeDescription = string.Empty;

  13:         public TimeLogger()

  14:         {

  15:             this.sw = Stopwatch.StartNew();

  16:         }

  17:         public TimeLogger(string codeDescription)

  18:         {

  19:             this.codeDescription = codeDescription;

  20:             this.sw = Stopwatch.StartNew();

  21:         }

  22:  

  23:         void IDisposable.Dispose()

  24:         {

  25:             sw.Stop();

  26:             if(string.IsNullOrEmpty(codeDescription))

  27:                 Console.WriteLine("Time taken by = {0} ms", sw.ElapsedMilliseconds);

  28:             Console.WriteLine("Time taken by {0} = {1} ms",codeDescription, sw.ElapsedMilliseconds);

  29:         }

  30:     }

  31: }

What do you think?