How to convert from UTC to desired time zone with MomentJS and JavaScript?

To convert from UTC to desired time zone with MomentJS and JavaScript, we can use the moment-timezone library.

To use it, we write:

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.34/moment-timezone.min.js" ></script>

to add the moment.js and moment-timezone scripts.

Then we write:

moment.tz.add([
  'America/New_York|EST EDT|50 40|0101|1Lz50 1zb0 Op0'
]);

const d = new Date(2022, 5, 1);
const myTimezone = "America/New_York";
const myDatetimeFormat = "YYYY-MM-DD hh:mm:ss a z";
const myDatetimeString = moment(d).tz(myTimezone).format(myDatetimeFormat);
console.log(myDatetimeString)

to call moment.tz.add to add the time zone data for Eastern time.

Then we create a date d with the Date constructor.

Next, we call moment with d to create a moment object.

Then we call tz with myTimezone to convert the time to the given time zone.

Next, we call format to return a date string with the format specified by myDatetimeFormat.

Therefore, myDatetimeString is '2022-06-01 03:00:00 am EDT'.