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How to convert a date dd/mm/yyyy into the date object format [duplicate]

I want to convert date to timestamp, my input is 26-02-2012. I used
new Date(myDate).getTime();
It says NaN.. Can any one tell how to convert this?

Split the string into its parts and provide them directly to the Date constructor:
Update:
var myDate = "26-02-2012";
myDate = myDate.split("-");
var newDate = new Date( myDate[2], myDate[1] - 1, myDate[0]);
console.log(newDate.getTime());

Try this function, it uses the Date.parse() method and doesn't require any custom logic:
function toTimestamp(strDate){
var datum = Date.parse(strDate);
return datum/1000;
}
alert(toTimestamp('02/13/2009 23:31:30'));

this refactored code will do it
let toTimestamp = strDate => Date.parse(strDate)
this works on all modern browsers except ie8-

There are two problems here.
First, you can only call getTime on an instance of the date. You need to wrap new Date in brackets or assign it to variable.
Second, you need to pass it a string in a proper format.
Working example:
(new Date("2012-02-26")).getTime();

UPDATE: In case you came here looking for current timestamp
Date.now(); //as suggested by Wilt
or
var date = new Date();
var timestamp = date.getTime();
or simply
new Date().getTime();
/* console.log(new Date().getTime()); */

You need just to reverse your date digit and change - with ,:
new Date(2012,01,26).getTime(); // 02 becomes 01 because getMonth() method returns the month (from 0 to 11)
In your case:
var myDate="26-02-2012";
myDate=myDate.split("-");
new Date(parseInt(myDate[2], 10), parseInt(myDate[1], 10) - 1 , parseInt(myDate[0]), 10).getTime();
P.S. UK locale does not matter here.

To convert (ISO) date to Unix timestamp, I ended up with a timestamp 3 characters longer than needed so my year was somewhere around 50k...
I had to devide it by 1000:
new Date('2012-02-26').getTime() / 1000

function getTimeStamp() {
var now = new Date();
return ((now.getMonth() + 1) + '/' + (now.getDate()) + '/' + now.getFullYear() + " " + now.getHours() + ':'
+ ((now.getMinutes() < 10) ? ("0" + now.getMinutes()) : (now.getMinutes())) + ':' + ((now.getSeconds() < 10) ? ("0" + now
.getSeconds()) : (now.getSeconds())));
}

For those who wants to have readable timestamp in format of, yyyymmddHHMMSS
> (new Date()).toISOString().replace(/[^\d]/g,'') // "20190220044724404"
> (new Date()).toISOString().replace(/[^\d]/g,'').slice(0, -3) // "20190220044724"
> (new Date()).toISOString().replace(/[^\d]/g,'').slice(0, -9) // "20190220"
Usage example: a backup file extension. /my/path/my.file.js.20190220

Your string isn't in a format that the Date object is specified to handle. You'll have to parse it yourself, use a date parsing library like MomentJS or the older (and not currently maintained, as far as I can tell) DateJS, or massage it into the correct format (e.g., 2012-02-29) before asking Date to parse it.
Why you're getting NaN: When you ask new Date(...) to handle an invalid string, it returns a Date object which is set to an invalid date (new Date("29-02-2012").toString() returns "Invalid date"). Calling getTime() on a date object in this state returns NaN.

JUST A REMINDER
Date.parse("2022-08-04T04:02:10.909Z")
1659585730909
Date.parse(new Date("2022-08-04T04:02:10.909Z"))
1659585730000

/**
* Date to timestamp
* #param string template
* #param string date
* #return string
* #example datetotime("d-m-Y", "26-02-2012") return 1330207200000
*/
function datetotime(template, date){
date = date.split( template[1] );
template = template.split( template[1] );
date = date[ template.indexOf('m') ]
+ "/" + date[ template.indexOf('d') ]
+ "/" + date[ template.indexOf('Y') ];
return (new Date(date).getTime());
}

The below code will convert the current date into the timestamp.
var currentTimeStamp = Date.parse(new Date());
console.log(currentTimeStamp);

The first answer is fine however Using react typescript would complain because of split('')
for me the method tha worked better was.
parseInt((new Date("2021-07-22").getTime() / 1000).toFixed(0))
Happy to help.

In some cases, it appears that some dates are stubborn, that is, even with a date format, like "2022-06-29 15:16:21", you still get null or NaN. I got to resolve mine by including a "T" in the empty space, that is:
const inputDate = "2022-06-29 15:16:21";
const newInputDate = inputDate.replace(" ", "T");
const timeStamp = new Date(newInputDate).getTime();
And this worked fine for me! Cheers!

It should have been in this standard date format YYYY-MM-DD, to use below equation. You may have time along with example: 2020-04-24 16:51:56 or 2020-04-24T16:51:56+05:30. It will work fine but date format should like this YYYY-MM-DD only.
var myDate = "2020-04-24";
var timestamp = +new Date(myDate)

You can use valueOf method
new Date().valueOf()

a picture speaks a thousand words :)
Here I am converting the current date to timestamp and then I take the timestamp and convert it to the current date back, with us showing how to convert date to timestamp and timestamp to date.

The simplest and accurate way would be to add the unary operator before the date
console.log(`Time stamp is: ${Number(+new Date())}`)

Answers have been provided by other developers but in my own way, you can do this on the fly without creating any user defined function as follows:
var timestamp = Date.parse("26-02-2012".split('-').reverse().join('-'));
alert(timestamp); // returns 1330214400000

Simply performing some arithmetic on a Date object will return the timestamp as a number. This is useful for compact notation. I find this is the easiest way to remember, as the method also works for converting numbers cast as string types back to number types.
let d = new Date();
console.log(d, d * 1);

This would do the trick if you need to add time also
new Date('2021-07-22 07:47:05.842442+00').getTime()
This would also work without Time
new Date('2021-07-22 07:47:05.842442+00').getTime()
This would also work but it won't Accept Time
new Date('2021/07/22').getTime()
And Lastly if all did not work use this
new Date(year, month, day, hours, minutes, seconds, milliseconds)
Note for Month it the count starts at 0 so Jan === 0 and Dec === 11

+new Date(myDate)
this should convert myDate to timeStamp

Javascript date with xs:dateTime

Is there a simple way to convert standard JavaScript date format to XS:date Time
So I have a date value (new Date()) and I need in the format: 2021-06-04T13:36:00.000+05:00
It strange but could not find simple solution

I think this worked for you
var date = new Date();
var formattedDate = date.toISOString() + "+" +(date.getTimezoneOffset() / 60) + ":00"
console.log(formattedDate)

What the elegant way to convert date in string to Date object?

I have this date in string format:
"05/2016" or "12/2015"
How can I convert the dates above in string format to Date() javascript object?

Date constructor accepts params in next order: year, month, day, hours, minutes, seconds, milliseconds, so simply parse string and pass it into Date constructor.
var data = "05/2016".split('/');
// Add + before year to convert str into number. Decrease second param because month starts from 0..11.
var date = new Date(+data[1],data[0] - 1);
console.log(date);
Also, you can convert your string to format which would be parsed correctly by new Date ( See more about dateString in MDN Date.parse description.
// convert string "05/2016" -> "2016-05"
var dateString = "05/2016".split('/').reverse().join('-');
var date = new Date(dateString);
console.log(date);

The previous answers are not correct - they get either the month or the year wrong. This is right (see the comment by Frédéric Hamidi)
var str = "12/2015";
var arr = str.split('/');
var date = new Date(parseInt(arr[1], 10), parseInt(arr[0], 10)-1)
console.log(date)

You can split string to get an array then use Date constructor.
new Date(year, month[, day[, hour[, minutes[, seconds[, milliseconds]]]]]);
var str = "12/2015";
var arr = str.split('/');
var date = new Date(parseInt(arr[1], 10), parseInt(arr[0], 10) - 1)
console.log(date)

You might want to look at Converting string to date in js
I had a similar issue and stumbled upon this existing link.

Parsing Date with javascript in FireFox

I have strange date format like this dMMMyyyy (for example 2Dec2013).
I'm trying to create Date object in my javascript code:
var value = "2Apr2014";
var date = new Date(value);
alert(date.getTime());
example
in Google Chrome this code works fine but in FireFox it returns Null
Can anyone suggest something to solve this problem
Thanks.

How about just parsing it into the values new Date accepts, that way it works everywhere
var value = "02Apr2014";
var m = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'];
var month = value.replace(/\d/g,''),
parts = value.split(month),
day = parseInt(parts.shift(), 10),
year = parseInt(parts.pop(), 10);
var date = new Date(year, m.indexOf(month), day);
FIDDLE

This fiddle works in both firefox and chrome
var value = "02 Apr 2014";
var date = new Date(value);
alert(date.getTime())
Check https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

I would suggest using something like jQuery datepicker to parse your dates.
I haven't tested it but it seems you'd need something like:
var currentDate = $.datepicker.parseDate( "dMyy", "2Apr2014" );
jsFiddle
Just be aware of:
d - day of month (no leading zero)
dd - day of month (two digit)
M - month name short
y - year (two digit)
yy - year (four digit)
However if for some reason you really wanted to do it yourself, then you could check out this link: http://jibbering.com/faq/#parseDate
It has some interesting examples on parsing dates.
Whilst not exactly what you want, the Extended ISO 8601 local Date format YYYY-MM-DD example could be a good indication of where to start:
/**Parses string formatted as YYYY-MM-DD to a Date object.
* If the supplied string does not match the format, an
* invalid Date (value NaN) is returned.
* #param {string} dateStringInRange format YYYY-MM-DD, with year in
* range of 0000-9999, inclusive.
* #return {Date} Date object representing the string.
*/
function parseISO8601(dateStringInRange) {
var isoExp = /^\s*(\d{4})-(\d\d)-(\d\d)\s*$/,
date = new Date(NaN), month,
parts = isoExp.exec(dateStringInRange);
if(parts) {
month = +parts[2];
date.setFullYear(parts[1], month - 1, parts[3]);
if(month != date.getMonth() + 1) {
date.setTime(NaN);
}
}
return date;
}

You can use following JavaScript Library for uniform date parser across browser.
It has documentation
JSFIDDLE
code:
var value = "2Apr2014";
var date =new Date(dateFormat(value));
alert(date.getTime());

Convert string as 'mm/dd/yyyy' to 'day of week, month name, year' in javascript

I am getting Facebook users' friends birthday back from Facebook in the following format:
10/07/1967 or just the day and month as 10/07
I want to display it as "October, 07, 1967" or "October, 07"
Is there a way to convert this string into a date and format it in Javascript?

var MONTHS = ["January","February","March","April","May","June","July","August","September","October","November","December"];
var myDate, myFormatDate;
var date_str ='10/07/1967';
var t = date_str.split("/");
if(t[2]) {
myDate = new Date(t[2], t[0] - 1, t[1]);
myFormatDate = MONTHS[myDate.getMonth()] + "," + myDate.getDate() + "," + myDate.getFullYear();
} else {
myDate = new Date(new Date().getFullYear(), t[0] - 1, t[1]);
myFormatDate = MONTHS[myDate.getMonth()] + "," + mydate.getDate();
}
= RESULT:
= myDate -- the Date Object
= myFormatDate -- formated date string "October, 07, 1967"

Check out the awesome DateJS library. You'll be able to do what you want, and more ...
[No, i'm not involved in any way with DateJs, just a very satisfied user :-)]

To do it fast, without bells and whistles, you can first split your date
myDateParts = myDate.split("/");
Then build the new date from the parts:
myNewDate = new Date(myDateParts[2], myDateParts[1], myDateParts[0]);

Using moment.js you can convert a date with:
moment('10/07/1967', "MM/DD/YYYY").format("MMMM, DD, YY")
where the first part get a date from a string given a format ("MM/DD/YYYY"), then you just format the date as you wish giving another format ("MMMM, DD, YY")

If you don't want to use a framework, you could just pass in the string to the date constructor:
var birthday = new Date('10/07/1967');
The constructor will also accept strings without year, like '10/07'.
Then you can access each of the properties as you wish:
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date