Deprecation updates for moment.js v2.8.1

countdown.js

$(document).ready(function(){
    countdown();
  	setInterval(countdown, 1000);
  	function countdown () {
	  var now = moment(), // get the current moment
	    // May 28, 2013 @ 12:00AM
	    then = moment([2014, 9, 20]),
	    // get the difference from now to then in ms
	    ms = then.diff(now, 'milliseconds', true);
	    // If you need years, uncomment this line and make sure you add it to the concatonated phrase
	    /*
	    years = Math.floor(moment.duration(ms).asYears());
	    then = then.subtract('years', years);
	    */
	    // update the duration in ms
	    ms = then.diff(now, 'milliseconds', true);
	    // get the duration as months and round down
	    months = Math.floor(moment.duration(ms).asMonths());

	    // subtract months from the original moment (not sure why I had to offset by 1 day)
	    then = then.subtract(months, 'months').subtract(1, 'days');
	    // update the duration in ms
	    ms = then.diff(now, 'milliseconds', true);
	    days = Math.floor(moment.duration(ms).asDays());

	    then = then.subtract(days,'days');
	    // update the duration in ms
	    ms = then.diff(now, 'milliseconds', true);
	    hours = Math.floor(moment.duration(ms).asHours());

	    then = then.subtract(hours,'hours');
	    // update the duration in ms
	    ms = then.diff(now, 'milliseconds', true);
	    minutes = Math.floor(moment.duration(ms).asMinutes());

	    then = then.subtract(minutes, 'minutes');
	    // update the duration in ms
	    ms = then.diff(now, 'milliseconds', true);
	    seconds = Math.floor(moment.duration(ms).asSeconds());

	    // concatonate the variables
	    diff = '<span class="num">' + months + '</span> months<br><span class="num">' + days + '</span> days<br><span class="num">' + hours + '</span> hours<br><span class="num">' + minutes + '</span> minutes<br><span class="num">' + seconds + '</span> seconds&#133;';
      $('#relative').html(diff);
  	}
    
  }

});