title: Converting a unix timestamp to NSdate using local timezone
body: <p>I'm getting some <code>start_times</code> and <code>end_times</code> in the form of <code>NSDecimalNumber</code>s back from an API request. </p>
  
  <p>I have successfully been able to convert these <code>NSDecimalNumber</code>s into <code>NSDate</code>s, but the code is not taking time zones into account. </p>
  
  <p>I need for it to use the timezone that is default on the device.</p>