JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://momentjs.com/downloads/moment.js"></script>
<script src="https://cdn.rawgit.com/moment/moment-timezone/f21ab0cb65a3b5b8848e267c6a1ac165775793ca/moment-timezone.js"></script>

JavaScript

function a () {
    moment.tz("Some_Unknown/Identifier");
}
a();