title: NSDateFormatter zeroing minutes
body: <p>When converting a date string for the server into a NSDate - which is in this format </p>
  
  <pre><code>2012-09-07T11:57:44+10:00
  </code></pre>
  
  <p>we're using this dateFormat in NSDateFormatter</p>
  
  <pre><code>yyyy-MM-dd'T'HH:mm:ssZZZ':'mm
  </code></pre>
  
  <p>but the minutes are always zero minutes.</p>