JSFiddle - React, Tailwind, and code Playground

by Conor

HTML

<script src="https://cdn.jsdelivr.net/npm/dayjs@1/plugin/utc.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dayjs@1/plugin/advancedFormat.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dayjs@1/plugin/timezone.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dayjs@1/dayjs.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dayjs@1/plugin/customParseFormat.js"></script>
<script src="https://cdn.jsdelivr.net/npm/dayjs@1/dayjs.min.js"></script>
<body>
<section>
<p>
Your guessed timezone is: <span id="timezone"></span>
</p>

<p>
Your backwards-compatable time is: <span id="fixed"></span>
</p>

</section>
</body>

JavaScript

const t = document.getElementById('timezone');
const f = document.getElementById('fixed');
dayjs.extend(window.dayjs_plugin_utc)
dayjs.extend(window.dayjs_plugin_timezone)
dayjs.extend(window.dayjs_plugin_advancedFormat)
dayjs.extend(window.dayjs_plugin_customParseFormat)

const episode = "2023-10-31T16:00Z";
const dayjsLocal = dayjs.utc(episode);
// LWJ code
const fixed = dayjsLocal.format('dddd, MMMM D @ h:mm A z');

t.innerText = dayjsLocal.tz('America/Chicago').format();
f.innerText = fixed;