title: Daylight Saving Time change schedule trigger for a marginal time
body: <p>I'm coding a scheduling app and I'm curious how to handle the following marginal situation concerning the Daylight Saving Time (DST) change:</p>
  
  <p>Say, we're in the time zone where the DST:</p>
  
  <ul>
  <li>Starts on <code>2014-Mar-9</code> at <code>2:00:00 AM</code> (clock is adjusted forward)</li>
  <li>Ends on <code>2014-Nov-2</code> at <code>2:00:00 AM</code> (clock is adjusted backward)</li>
  </ul>
  
  <p>Suppose, an end-user scheduled my app for <code>2014-Nov-2, 2:00:00 AM</code>.</p>
  
  <p>Let's assume that the local date/time now is <code>2014-Nov-2, 1:59:99 AM</code>.</p>
  
  <p>When should my app fire the schedule -- in 1 second, or in 1 hour and 1 second? </p>
  
  <p>Is there a standard that defines how to deal with this situation?</p>