Format hours, minutes and seconds with moment.js

Question

I get this value from my backend service: 171054. It represents hh:mm:ss. But when I use the formatting options from the docs it gives me back 00:00:00.

Things I've tried:

moment('171054').format('hh-mm-ss')
moment('171054').format('HH-mm-ss')
moment('171054').format('HH-MM-SS')

Answer 1

You are confusing format option with parsing option. Since your input string is not in ISO 8601 format, you have to specify format when parsing.

Here a working example for your use case:

var mom = moment('171054', 'HHmmss');
console.log(mom.format());
console.log(mom.format('HH:mm:ss'));

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.15.1/moment.min.js"></script>