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
Related
I am trying to convert date object to ISOString() formate. But it return me 1 day off ( I mean it reduce 1 day ).
var fromDate = {
day:4,
month:5,
year:2012
}
var fromDateString = new Date(fromDate.year+'-'+fromDate.month+'-'+fromDate.day)
console.log(fromDateString.toISOString())
It is because of timezone, new Date() is in your current timezone, toISOString() is using standard timezone.
I have searched and I find best solution for every date object to convert in any format.
Comment if you agree?
var dateObj = {
day:2,
month:5,
year:2012
}
var date = new Date;
date.setFullYear(dateObj.year,dateObj.month-1,dateObj.day)
console.log(date)
I have a date time picker and it omits date in format of a DD-MM-YYYY HH:mm a format. I want to convert it into epoch time to store it in the database backend.
I have tried using the following methods so far, but all of them return NaN as output:
var loadingPlannedUnTime = this.state.loadingPlannedUnTime;
console.log("normal conversion"+loadingPlannedUnTime);
//returns 9-08-2020 15:08:00
//Moment method
var loadingPlannedUnTime = moment(this.state.loadingPlannedUnTime).unix();
console.log("moemnt"+loadingPlannedUnTime)
//Returns NaN
//JS getTime() method
var pickupDateTime = new Date(this.state.loadingPickupTime);
var loadingPickupTime = pickupDateTime.getTime();
console.log("new date and gettime"+loadingPickupTime)
//Returns NaN
What is the correct method to convert it to epoch time?
https://momentjs.com/docs/
If you know the format of an input string, you can use that to parse a moment.
moment("12-25-1995", "MM-DD-YYYY");
const x = moment('24-12-2019 09:15', "DD-MM-YYYY hh:mm");
console.log(x.format())
<script src="https://rawgit.com/moment/moment/2.2.1/min/moment.min.js"></script>
const matches = loadingPlannedUnTime.match(/(\d{1,2})-(\d{1,2})-(\d{2,4}) (\d{1,2}):(\d{1,2}):(\d{1,2})/);
if (!!matches) {
// new Date(year, month, day, hours, minutes, seconds, milliseconds)
const epoch = new Date(matches[3], matches[2] - 1, matches[1], matches[4], matches[5], matches[6]).getTime();
console.log(epoch);
}
I am trying to convert string to time, the string i have are in this format, '8:3' and '16:45'.
I want to convert UTC time in jQuery.
You can write your function to create UTC date with the time string.
function toUTC(str) {
let [h, m] = str.split(':');
let date = new Date();
date.setHours(h, m, 0)
return date.toUTCString();
}
console.log(toUTC('8:3'))
console.log(toUTC('16:45'))
You don't need jQuery for such operations. Just the simple Date object will do the trick. Say you want to convert time from a specific date.
let date = new Date('2020-04-01'); // leave the Date parameter blank if today
date.setHours(16); // must be 24 hours format
date.setMinutes(45);
let theUTCFormat = date.getUTCDate();
Cheers,
I have a code where I try to set date 20 days back from current date on server. I have used a variable(say dateRange) in javascript to get current date. But on using the same variable second time for setDate() function value of dateRange is changed to epoch from date. I know I can convert epoch to date and proceed but is there a way to stop this automatic conversion.
var dateRange=new Date(currentDate);
dateRange = dateRange.setDate(dateRange.getDate() - 20);
setDate modifies the date object, and returns the epoch value. Just don't save the epoch value in dateRange, so you can use the date object after modifying it:
var currentDate = new Date();
var dateRange = new Date(+currentDate);
console.log(dateRange.toISOString());
dateRange.setDate(dateRange.getDate() - 20);
console.log(dateRange.toISOString());
Side note: Copying a date by doing var dateRange = new Date(currentDate); is/was unreliable on some browsers. In the above, I've changed it to var dateRange = new Date(+currentDate); (note the +, converting the date to its epoch value), which is reliable.
Internally dates are stored as milliseconds from the epoch date.
To achieve what you are trying to do you can subtract the number of milliseconds that corresponds to 20 days:
var currentDate = "2019-07-29T07:14:57.269Z";
var dateRange = new Date(currentDate);
var pastDate = new Date(dateRange - 1000 * 60 * 60 * 24 * 20);
console.log('current', currentDate);
console.log('20 days ago', pastDate);
anyway if you are doing a lot of date/time manipulations in your app i suggest you to use this library: https://momentjs.com/
At the moment I save my date like this: ISODate("2014-11-17T16:19:16.224Z"), but I want this result: ISODate("2014-11-16T23:00:00Z"). How can I do this?
An easier alternative is to use Date.setHours() - in single call you can set what you need - from hours to milliseconds. If you just want to get rid of the time.
var date = new Date();
date.setHours(0,0,0,0);
console.log ( date );
Set the parts you don't want saved to 0. In your example, you would set the minutes, seconds, and milliseconds to 0.
var date = new Date();
date.setMinutes(0);
date.setSeconds(0);
date.setMilliseconds(0);
var isoDateString = date.toISOString();
console.log(isoDateString);
Or, a less verbose option:
var date = new Date();
var isoDateString = date.toISOString().substring(0,10);
console.log(isoDateString);
To Save a date without a time stamp:
let date = new Date().toLocaleDateString('en-US');
console.log(date)
// OUTPUT -> m/d/yyyy
Use this to find options to add as paramaters for the toLocaleDateString function