title: Transpose date into local timezone without shifting the date
body: <p>I have an input date with a specific time zone in string. For example:</p>
  
  <p><code>Sat May 20 2017 17:00:00 GMT-0300 (-03)</code></p>
  
  <p>I want to change the timezone of this date to my local timezone without converting the time. As if the input date was in my correct timezone.</p>
  
  <p><code>Sat May 20 2017 17:00:00 GMT+0200 (CEST)</code></p>
  
  <p>I played around with moment and found this:</p>
  
  <p><code>const date = moment(moment.utc('Sat May 20 2017 17:00:00 GMT-0300 (-03)').format('LLL'))</code></p>
  
  <p>Is it the simplest way to do it? I don't like the copy of the moment object but I can't find a method to do it in a "single shot". </p>