title: Moment.js works with valid date on Chrome but not IE or Firefox
body: <p>So this works fine in Chrome but not IE(11) and Firefox</p>
  
  <pre><code> var startDate = moment("12-Nov-2015").format("D-MMM-YYYY");
          var startTime = "10:00 AM";
  
          var startDateTime = moment(startDate + ' ' + startTime);
  alert(moment(startDateTime).format("D-MMM-YYYY h:mm A"));
  </code></pre>
  
  <blockquote>
    <p>IE and Chrome just return "Invalid Date"</p>
  </blockquote>
  
  <p>any ideas what im missing?</p>