Moment JS playground.
by trunglt11
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
<p id="output"></p>JavaScript
const out = document.getElementById('output');
const diff =moment.utc(moment.duration(360, "seconds").as("milliseconds")).format("mm:ss")
out.innerText = diff;