title: iOS: convert UTC timezone to device local timezone
body: <p>I am trying to convert the following timezone to device local timezone:</p>
  
  <pre><code>2013-08-03T05:38:39.590Z
  </code></pre>
  
  <p>Please let me know how to convert it to local timezone.</p>
  
  <p>How do I do it?</p>