Convert dd-mm-yyyy / dd/mm/yyyy string to date

Question

I am trying to convert a string format of date into a date object in JavaScript. I am getting different kinds of date formats like "dd/MM/yyyy HH:mm:ss" or "dd-MM-yyyy HH:mm:ss" or "MM-dd-yyyy HH:mm:ss" etc. I want to convert them into timestamp and display them in UI. I tried below code for getting date object

new Date("05/01/2012 21:10:17");
Tue May 01 2012 21:10:17 GMT+0530 (India Standard Time)
new Date("15/01/2012 21:10:17");
Invalid Date
new Date("15-01-2012 21:10:17");
Invalid Date
new Date("05-01-2012 21:10:17");
Tue May 01 2012 21:10:17 GMT+0530 (India Standard Time)

Few of them are getting Invalid Date. Please help me, is there any specific code/logic to convert any string format to date object?

If those dates are strings, how do you tell if 01-05-2000 is the fifth of January or the first of May? How would you tell the program how to tell the difference? — Matus Dubrava, Apr 17 '18 at 12:26

score 0 · Answer 1 · answered Apr 17 '18 at 12:26

0

Javascript Date object reads "month day year", not "day month year", so you need to update your String a bit.

Here, I just swap the month and the day in your String :

const data = "15/01/2012 21:10:17";
const readableDate = data.substring(3,6) + data.substring(0,2) + data.substring(5,data.length);
console.log(new Date(readableDate));

answered Apr 17 '18 at 12:26

Zenoo

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The built-in parser is only required to support the [subset of ISO 8601](http://ecma-international.org/ecma-262/8.0/#sec-date-time-string-format) noted in ECMA-262, support for any other format is implementation dependent. – RobG Apr 17 '18 at 20:41

score 0 · Answer 2 · answered Apr 17 '18 at 12:26

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There is the best tool for playing with dates in JavaScript I've been ever using. It's called Moment.js. I recommend you to take a look at this, it allows you for example to do something like this:

var date = moment("2014-02-27T10:00:00").format('DD-MM-YYYY');
var dateMonthAsWord = moment("2014-02-27T10:00:00").format('DD-MMM-YYYY');
var myDate = moment(str, 'YYYY-MM-DD').toDate();

answered Apr 17 '18 at 12:26

Dawid Rutkowski

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This should be a comment. Answers of "use library X" when the library isn't tagged or mentioned in the OP [aren't helpful](https://www.doxdesk.com/img/updates/20091116-so-large.gif). – RobG Apr 17 '18 at 20:39
I don't agree. It's useful. – Dawid Rutkowski Apr 18 '18 at 07:40

score 0 · Answer 3 · answered Apr 17 '18 at 12:27

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You can also do this:

var d = new Date(year, month, day, hour, minute, second, millisecond);

To convert to timestamp you call:

d.getTime()

answered Apr 17 '18 at 12:27

Iago Bruno

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Convert dd-mm-yyyy / dd/mm/yyyy string to date

3 Answers3