Momentjs change timezone without affecting time

Question

I'm trying to set the timezone for a date in moment.js without changing the time value.

I get a date in utc:

const date = "2022-01-18T00:00:00.000Z";

And Im doing the next with moment-timezone

moment(date).tz("America/Bogota", true).format();

It is supposed to change the timezone without affecting the time but im getting:

2022-01-17T19:00:00-05:00

And what I expect:

2022-01-18T00:00:00-05:00

Answer 1

I fixed this way:

moment.utc(date).tz("America/Bogota", true).format();

Answer 2

I'd suggest perhaps using the moment.tz constructor with a format string. This way, we'll parse the input date as a local time.

const date = "2022-01-18T00:00:00.000Z";

console.log(moment.tz(date, "YYYY-MM-DD[T]HH:mm:sss.SSS", "America/Bogota").format());

.as-console-wrapper { max-height: 100% !important; }

<script src="https://momentjs.com/downloads/moment.js"></script>
<script src="https://momentjs.com/downloads/moment-timezone-with-data-1970-2030.min.js"></script>

Answer 3

It seems as though .format may be converting the date into local time.
The results I get with various time zones in moment

The date you provided converted from UTC to my local time

With my local moment()