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Format amount of seconds to minutes and seconds with momentjs

I'd like to use momentjs to use a given amount of seconds (e.g. 65) and format that to minutes and seconds (so in the case of 65 seconds it should format it to '01:05'). I've looked around the momentjs docs and also here but I couldn't quite get to the right solution. I know there's a way to do this with just pure JavaScript, but I'd like to use momentjs for this.
Any suggestions?

If you insist on doing this using moment.js, you can do something like this:
Start with a 00:00:00.000 time and add seconds, minutes, etc. to it.
Here is an example:
const result = moment("00:00:00.000", "hh:mm:ss.SSS").add(65, "s").format("mm:ss");
console.log(result);
<script src="https://cdn.jsdelivr.net/momentjs/2.14.1/moment-with-locales.min.js"></script>
The problem is that since this is the time of a date, when you add 24 hours to it, you'll end up with 00:00:00 instead of 24:00:00.

How to work with Moment.js to return time in a 24-hours format when adding to it?

I get hours as strings in my app, e.g. "2230". I would like to be able to add minutes to it, so as to simulate the time that it will be after those minutes have been added to it, e.g.
//"2230" + "60"mins = "23:30"
//"2230" + "180"mins = "02:30"
I read that Moment.js could be a solution to this, but I couldn't figure out:
what the right way to format the hours initially is with moment("2230").format()
how to add minutes to it
how to make it behave like a 24-hour clock when adding to it

Moment is a great tool for doing this. It takes some syntax tricks to get it right, but I think this is what you're looking for:
moment("2230", "HH:mm")
.add(60, "minutes")
.format("HH:mm")
Feel free to play around with it here:
https://codesandbox.io/s/proud-pine-lz0fs?file=/src/index.js
As you can see, as long as your time string is always 4 characters long, moment can extract the HH:mm format, then you can add minutes, and then format the final output to HH:mm again.
Here are 2 great resources:
https://techstream.org/Bits/Javascript/Javascript-Parse-time
https://flaviocopes.com/momentjs/
Hope that helps!

First you have to split this string to get the hours and minutes from it.
const s= "2230"
const hour = s.substring(0,2);
const min = s.substring(2,4);
After that you can easily pass this hours and min to a moment.
const time = moment()
.set({"hour": hour, "minute": min})
.add(60, 'minutes')
.format("HH:mm");
the .set is to set the time (hours minutes)
the .add is to add the minutes you wanted to add
the .format is to format the output as you pleased,
NOTE the capital "HH" means 24/h clock while "hh" means 12/h clock

How to parse "1h30m" style durations into a Moment.js duration

I would like to try and convert time duration strings to a moment.js duration object. An example of the string format is as follows: "1h30m", which should correspond to 1 hour, 30 minutes, and 0 seconds.
My first thought was to use regex so that I could pull the hours, minutes and seconds but I have a feeling that there's a more efficient way to handle it - the end goal is to use these to calculate how long until a command is run - I saw there was a library called momentjs that I feel could possibly handle this, but the docs don't give a clear way on handling duration formatting in the format that I have in mind. I can provide the code I have written so far, though I don't imagine it would be of much help.

Yes, you can use moment.js to do this - but I'm not sure if it's strictly necessary as it can also be accomplished through simple string manipulation.
String Manipulation Approach:
function parseTimeSpan(timeString) {
let parts = timeString.split("h");
return {
hours: Number(parts[0]),
minutes: Number(parts[1].slice(0, -1))
};
}
JsFiddle Here
Note this will only work with strings that contain both the hour and minute component, and does not support seconds.
Moment.JS Approach:
function parseTimeSpan(timeString) {
return moment.duration("PT" + timeString.toUpperCase());
}
JsFiddle Here
This approach is more robust and handles far more use cases, but is slower and requires an external library.

JavaScript + Format duration with Moment.js

I have some JavaScript running in Node. This code dynamically gets a number of seconds. For the sake of this example, I'll choose 180 to represent 3 minutes. I'm trying to format the number of seconds like "3:00" using Moment.js. I'm trying to format the number of seconds using the Moment duration and Moment duration format plugin. My code looks like this:
var duration = 180;
var text = moment.duration(duration, 'seconds').format('mm:ss');
console.log(text);
When I run this, I see text is printed as 00. It's not formatted as I'd expect and I do not understand why. Can someone please explain to me what I'm doing wrong?
Thank you!

Using moment.js how do I give a specific format for a duration

Given a duration of a number of seconds coming from an API as duration_seconds = 86485.
(1 day, 0 hours, 1 minute, 1 second)
I was going to use moment.js to convert this into formatted duration as follows:
1. {d} {hh}:{mm}:{ss} (1d 00:01:01)
2. {d}d {hh}h m{mm} s{ss} (1d 04h 30m 23s)
I would also like to ensure the following:
Days are trimmed if days is 0 (00:01:01 - for 1 minute 1 second)
hh:mm:ss are never trimmed, 1 second shows as 00:00:01.
I can create the duration like this:
moment.duration(duration_seconds, 'seconds')
The humanize function is not suitable as it approximates.
I can also write my own with:
duration.get('d')
duration.get('h')
duration.get('m')
duration.get('s')
I can't seem to find a built in function but I assume this would be an obvious one? Is there something I am missing, otherwise I can PR one into moment library.
This seems to imply that the function still does not exist:
Using moment.js, How can I simplify a duration to its most simplified form?

The moment-duration-format plugin can assist you with this.
// your input
var duration_seconds = 86485;
// create a moment-duration object
var duration = moment.duration(duration_seconds, 'seconds');
// format the object with a string
var formatted = duration.format('h[h] m[m] s[s]');
// displaying the output here
document.getElementById('output').innerHTML = formatted;
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-duration-format/1.3.0/moment-duration-format.min.js"></script>
<div id="output" />
Note that by default it will omit units that are not relevant, so if your input is 3, it's just going to say "3s", not "0h 0m 3s".
If you want to change this behavior, set trim:false, per the documentation. For example, to get the format you mentioned in comments, use:
.format('hh:mm:ss', { trim: false })

Maybe you can try this?
moment(duration).format("DD MMM YYYY hh:mm: a")
Though you might have to convert your seconds to milliseconds. This can be done by saying duration * 1000.
Found from this answer: Moment js convert milliseconds into date and time