title: DateTime.AddDays() not working as expected
body: <p>I have this simple program:</p>
  
  <pre><code>        DateTime aux = new DateTime(2012, 6, 12, 12, 24, 0);
          DateTime aux2 = new DateTime(2012, 6, 12, 13, 24, 0);
          aux2.AddDays(1);
  
         Console.WriteLine((aux2 - aux).TotalHours.ToString());
  
          Console.ReadLine();
  </code></pre>
  
  <p>I debugged this and found <code>aux2.AddDays(1);</code> doesn't seem to work, what am I missing here?
  it should return 25 but the answer is one.</p>
  
  <p>What is the problem?</p>
  
  <p>also <code>AddHours</code> doesn't work, I guess that the others aren't working too.</p>