title: Calculate days to go until a particular date with momentjs
body: <p>I want to count down the days until a particular event using momentjs but I'm getting an unexpected result.</p>
  
  <p>With today's date being 17th April, and the event date being 14th May, I want the resulting number of days to be 27, however my code gives me a result of 57. What's wrong?</p>
  
  <pre><code>function daysRemaining() {
      var eventdate = moment([2015, 5, 14]);
      var todaysdate = moment();
      return eventdate.diff(todaysdate, 'days');
  }
  alert(daysRemaining());
  </code></pre>