title: Format existing date variable with moment.js
body: <p>I have a date variable (coming from an external source):</p>
  
  <pre><code>var date = '28/04/2017';
  var time = '19:28';
  </code></pre>
  
  <p>It is possible to format these variables with moment.js (or without?) to variout formats? </p>
  
  <p>Example: 04.28 19:28, 2017.04.28 19:28 or even Today at 19:28 (with moment().calendar();)</p>
  
  <p>I tried </p>
  
  <pre><code>moment(date+' '+time).format('MM.DD.YYYY');
  </code></pre>
  
  <p>...but I am getting "Invalid date" error.</p>