title: Invoking toLocaleString() in UTC
body: <p>I have a variable <code>d</code> of type <code>Date</code> and value <code>'2017-05-01T01:00:00.000Z'</code>.</p>
  
  <p>My time zone is UTC-4.</p>
  
  <p>When I invoke:</p>
  
  <pre><code> d.toLocaleString("en-US", { month: "short" });
  </code></pre>
  
  <p>I get <code>Apr</code>, because the date is Apr 30, 2017 2100h UTC-4 where my Javascript is running.</p>
  
  <p>Is there an easy way to get <code>toLocaleString</code> to treat the date instance according to its UTC equivalent?</p>