How to convert string date to specific format?

Question

I am trying to get date from string in specific format like:

 const format = 'MM/dd/yyyy HH:mm'; const dt = "2021-03-11T22:00:00.000Z"; // expecting "03/11/2021 22:00" console.log(moment(dt).format(format)); // but getting "03/Th/yyyy 23:00"

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

I tried js date, moment, luxon and I don't understand how to make this:(
I suspect that 000Z made problem but this is date I get.

Answer 1

The difference between Moment.js and Luxon is the case of the format keys. Please review the key/token tables.

• Moment.js / String + Format
• Luxon / Table of tokens

Note: Moment.js has been deprecated in favor of the team's newer library Luxon and other ECMA Script standards that are being introduced in ECMA-402 . If you are considering using Moment.js now, just switch over to Luxon.

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If you are using Luxon, you can call .toUTC() right before you format the date. Make sure your day of month ( dd ) and year ( yyyy ) format keys are lower-case.

 const DateTime = luxon.DateTime; const format = 'MM/dd/yyyy HH:mm', dt = "2021-03-11T22:00:00.000Z"; console.log(DateTime.fromISO(dt).toUTC().toFormat(format)); // 03/11/2021 22:00

 <script src="https://cdnjs.cloudflare.com/ajax/libs/luxon/1.26.0/luxon.min.js"></script>

If you are using Moment.js, you can call .utc() right before you format the date. Make sure your day of month ( DD ) and year ( YYYY ) format keys are upper-case.

 const format = 'MM/DD/YYYY HH:mm', dt = "2021-03-11T22:00:00.000Z"; console.log(moment(dt).utc().format(format)); // 03/11/2021 22:00

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

Answer 2

Your format string is wrong, it should be: 'MM/DD/YYYY HH:mm' .

Then, if your date comes with ':000Z' , you should remove it with the substring() method.

Working code:

 const format = 'MM/DD/YYYY HH:mm'; const dateString = "2021-03-11T22:00:00:000Z"; const date = dateString.substring(0, dateString.length - 5); console.log(moment(date).format(format)); // prints 03/11/2021 22:00

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

Answer 3

You need to use YYYY instead of yyyy and DD instead of dd to get the expected result.
By the way, I suggest using another library than Moment , like dayjs for instance.