title: How to get the time difference between 2 dates in millisec using JodaTime
body: <p>I'm going to design an application, in which I need to get the exact time difference between two dates.  Ex:</p>
  
  <pre><code>Date1:31/05/2011 12:54:00
  Date2:31/05/2011 13:54:00
  </code></pre>
  
  <p>I tried using <code>getTime()</code> but I didn't get exact result.</p>
  
  <p>The expected output for the above inputs is <code>3600000</code> (60 * 60 * 1000) millisec but I'm getting <code>46800000</code> (13 * 60 * 60 * 1000).</p>
  
  <p>When I went through different java forums people are suggesting to use JodaTime.</p>
  
  <p>Still I'm unable to get the exact result.</p>
  
  <p>The timezone on I'm working is London(GMT).</p>