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Material2 Datepicker - Convert date to timestamp without time [duplicate]

Can I convert iso date to milliseconds?
for example I want to convert this iso
2012-02-10T13:19:11+0000
to milliseconds.
Because I want to compare current date from the created date. And created date is an iso date.

Try this
var date = new Date("11/21/1987 16:00:00"); // some mock date
var milliseconds = date.getTime();
// This will return you the number of milliseconds
// elapsed from January 1, 1970
// if your date is less than that date, the value will be negative
console.log(milliseconds);
EDIT
You've provided an ISO date. It is also accepted by the constructor of the Date object
var myDate = new Date("2012-02-10T13:19:11+0000");
var result = myDate.getTime();
console.log(result);
Edit
The best I've found is to get rid of the offset manually.
var myDate = new Date("2012-02-10T13:19:11+0000");
var offset = myDate.getTimezoneOffset() * 60 * 1000;
var withOffset = myDate.getTime();
var withoutOffset = withOffset - offset;
console.log(withOffset);
console.log(withoutOffset);
Seems working. As far as problems with converting ISO string into the Date object you may refer to the links provided.
EDIT
Fixed the bug with incorrect conversion to milliseconds according to Prasad19sara's comment.

A shorthand of the previous solutions is
var myDate = +new Date("2012-02-10T13:19:11+0000");
It does an on the fly type conversion and directly outputs date in millisecond format.
Another way is also using parse method of Date util which only outputs EPOCH time in milliseconds.
var myDate = Date.parse("2012-02-10T13:19:11+0000");

Another option as of 2017 is to use Date.parse(). MDN's documentation points out, however, that it is unreliable prior to ES5.
var date = new Date(); // today's date and time in ISO format
var myDate = Date.parse(date);
See the fiddle for more details.

Yes, you can do this in a single line
let ms = Date.parse('2019-05-15 07:11:10.673Z');
console.log(ms);//1557904270673

Another possible solution is to compare current date with January 1, 1970, you can get January 1, 1970 by new Date(0);
var date = new Date();
var myDate= date - new Date(0);

Another solution could be to use Number object parser like this:
let result = Number(new Date("2012-02-10T13:19:11+0000"));
let resultWithGetTime = (new Date("2012-02-10T13:19:11+0000")).getTime();
console.log(result);
console.log(resultWithGetTime);
This converts to milliseconds just like getTime() on Date object

var date = new Date()
console.log(" Date in MS last three digit = "+ date.getMilliseconds())
console.log(" MS = "+ Date.now())
Using this we can get date in milliseconds

var date = new Date(date_string);
var milliseconds = date.getTime();
This worked for me!

if wants to convert UTC date to milliseconds
syntax : Date.UTC(year, month, ?day, ?hours, ?min, ?sec, ?milisec);
e.g :
date_in_mili = Date.UTC(2020, 07, 03, 03, 40, 40, 40);
console.log('miliseconds', date_in_mili);

In case if anyone wants to grab only the Time from a ISO Date, following will be helpful. I was searching for that and I couldn't find a question for it. So in case some one sees will be helpful.
let isoDate = '2020-09-28T15:27:15+05:30';
let result = isoDate.match(/\d\d:\d\d/);
console.log(result[0]);
The output will be the only the time from isoDate which is,
15:27

setHours is not a function when converting time from string

I am trying to compare a time in string format to the current time. I've tried setting up two Date objects and calling .Now() on both of them, then on one of them adjusting the time to the time that is in string format by splitting it and parsing both the hours and minutes to integers, but I get the following error:
setHours is not a function
The 'cutoff' value I'm using is '15:00' and when following in the debugger I can see this splits in to split[0] = 15 and split[1] = 00 (this is before they are parsed into integers.
var cutoff = data.CutOff;
var split = cutoff.split(":");
var today = Date.now();
var hours = parseInt(split[0]);
var min = parseInt(split[1]);
today.setHours(hours, min);
if (Date.now() < today) {
// Do Something
}

You want to do new Date() as opposed to Date.now()
new Date creates a Date instance which allows you to access the Date methods.
Date.now() method returns the number of milliseconds elapsed since 1 January 1970 00:00:00 UTC.

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.

How to subtract two different dates from a date/time stamp?

I need to subtract a date like 1/26/2015 from a date-time like 2016-01-27T01:10:57.569000+00:00. From what I've read converting both to distance in milliseconds from Epoch and then subtracting is the easiest way. I've tried using various methods, but all the methods seem to say 2016-01-27T01:10:57.569000+00:00 is invalid data. The method .getTime() works great for the 1/26/2015 format, but it can't read the 2016-01-27T01:10:57.569000+00:00.
How does one go about getting the date/time UTC time into milliseconds?

On a complicated way you can use a regex to extract each part of the date as string and then use them in a new Date with all parameters:
function getTimeDifference(){
var regEx = /(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):([\d.]+)/;
var dateString = '2016-01-27T01:10:57.569000+00:00';
var r = regEx.exec( dateString );
var date1 = new Date(r[1], r[2]-1, r[3], r[4], r[5], r[6]); // Notice the -1 in the month
var date2 = new Date('1/26/2015');
var difference = date1 - date2;
Logger.log(difference);
}

I ended up using this. When I call parseDate(), I used getTime() to get the date in milliseconds then subtracted them and converted them to days. For my use case the time didn't have to be down to the second, but if it did, it wouldn't be hard to parse more info from the string. I ran into trouble initially because as a beginner Javascript writer I didn't know why apps script wouldn't accept this format into the date constructor.
function parseDate(str) {
//This should accept 'YYYY-MM-DD' OR '2016-01-27T01:10:57.569000+00:00'
if(str.length == 10){
var mdy = str.split('-');
return new Date(mdy[0], mdy[1]-1, mdy[2]);
}
else
{
var mdy = str.split('-');
var time = mdy[2].split('T');
var hms = time[1].split(':');
return new Date(mdy[0], mdy[1]-1, time[0], hms[0], hms [1]);
}
}

If you are confident that the values in the date strings will always be valid and that the ISO8601 string will always have offset 00:00 (i.e. UTC), then simple parse functions are:
// Parse ISO 8601 format 2016-01-27T01:10:57.569000+00:00
function parseISOUTC(s) {
var b = s.split(/\D/);
return new Date(Date.UTC(b[0],b[1]-1,b[2],b[3],b[4],b[5],b[6]));
}
document.write(parseISOUTC('2016-02-04T00:00:00.000+00:00'));
// Parse US format m/d/y
function parseMDY(s) {
var b = s.split(/\D/);
return new Date(b[2],b[0]-1,b[1]);
}
document.write('<br>'+ parseMDY('2/4/2016'))
document.write('<br>'+ (parseISOUTC('2016-02-04T00:00:00.000+00:00') - parseMDY('2/4/2016')))
Note that the first string is UTC and the second will be treated as local (per ECMAScript 2015), so the difference between 2016-02-04T00:00:00.000+00:00 and 2/4/2016 will be the time zone offset of the host system.

Convert date from string in javascript

i need to convert from a date in string format like this "2011-05-12 16:50:44.055" to the number of milliseconds since midnight 1 January 1970 date format in Javascript

To ensure correct cross-browser behaviour, I think you should parse the string yourself. I moulded this answer into:
function msFromString(dateAsString)
{
var parts = dateAsString.match(/(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2}).(\d{3})/);
return new Date(parts[1],
parts[2] - 1,
parts[3],
parts[4],
parts[5],
parts[6],
parts[7]).getTime();
}
console.log(msFromString("2011-05-12 16:50:44.055"));
This outputs 1305211844055.

This works everywhere including Safari5 and Fx5 on OSX
DEMO HERE
Without milliseconds:
var date_test = new Date("2011-07-14 11:23:00".replace(/-/g,"/"));
WITH milliseconds in the timestamp
var timestamp = "2011-05-12 16:50:44.055";
var dateParts = timestamp.split(".");
var date_test = new Date(dateParts[0].replace(/-/g,"/"));
var millisecs = date_test.getTime()+parseInt("1"+dateParts[1]);
alert(millisecs+"\n"+new Date(2011,4,12,16,50,44,55).getTime());

Have you tried the Date.parse() method? It should recognise this format (though I haven't tested that). The return value should be the number of milliseconds since 01/01/1970.

Make a Date object from the date string and use the getTime() method to get the milliseconds since 1 January 1970. http://www.w3schools.com/jsref/jsref_obj_date.asp
var date = new Date("2011-05-12 16:50:44.055");
document.write(date.getTime());