How to format date in certain timezone with momentjs

Issue #664

Use moment-timezone https://momentjs.com/timezone/docs/

npm install moment-timezone

// public/index.html
<script src="moment.js"></script>
<script src="moment-timezone-with-data.js"></script>

Need to import from moment-timezone, not moment

import moment from 'moment-timezone'

moment(startAt).tz('America/Los_Angeles').format('MMMM Do YYYY')