I am just a beginner. My original date is: Friday, September 16th 2016, 09:00
And I need to convert it to this format: Fri Sep 16 2016 09:00:00 GMT+0000 (GMT)
But my code shows wrong date: Tue Sep 06 2016 09:00:00 GMT+0100 (BST)
Please see my code here:
var startdate = "Friday, September 16th 2016, 09:00";
var sdate = new Date(startdate.replace(/(\d)+(st|nd|th)/g, '$1'));
alert(new Date(sdate));
Can anybody help me with this issue? The example is here: https://jsfiddle.net/5hzwbbku/3/
By using momentjs I receive the strange results: https://jsfiddle.net/5hzwbbku/13/
Your regex is incorrect. /(\d)+(st|nd|th)/g matches the 16th but the captured group only contains 6. In order to return 16 your regex needs to be /(\d+)(st|nd|th)/g, like so:
var sdate = new Date(startdate.replace(/(\d+)(st|nd|th)/g, '$1'));
If you need the time to be in UTC, you'll have to append a timezone such as +0, +0000, or simply Z (for Zulu time).
var startdate = "Friday, September 16th 2016, 09:00";
startdate = startdate + ' +0000';
var sdate = new Date(startdate.replace(/(\d+)(st|nd|th)/g, '$1'));
alert(new Date(sdate));
On my system that returns Fri Sep 16 2016 11:00:00 GMT+0200 (CEST) which is 09:00 in UTC.
Other regexes that match correctly are /(\d)(st|nd|th)/g (note the complete absence of the +) and the one given by pastine in the comments /(.\d)+(st|nd|th)/g.
Related
var date1 = new Date('1900-01-01');
console.log(date1);
Yields:
"Mon Jan 01 1900 01:00:00 GMT+0100 (W. Europe Standard Time)"
var date2 = new Date(1900,1,1);
console.log(date2);
Yields:
"Thu Feb 01 1900 00:00:00 GMT+0100 (W. Europe Standard Time)"
Fiddle
But I don't understand why!
You can see the month difference since when you pass individual components (year, month, day, etc) to the Date object constructor, you have to consider that month parameter should start with 0:
console.log( new Date('1900-01-01').getMonth() ); // 0
Other than Jan/Feb there shouldn't be any differences in dates.
MDN: https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Date
I have the following timestamp: 2016-03-29T14:14:43.000Z. Is there any easy way to use JavaScript to make it look something like the following: Mar 29, 2016 2:14p? I tried using Date.parse() but it didn't seem to do anything.
{{yourValue| date:"MMM d, yyyy h:ma"}}
var ts = "2016-03-29T14:14:43.000Z";
var date = new Date(ts);
console.log(date); // Displays Tue Mar 29 2016 16:14:43 GMT+0200 (Romance Summer Time)
Is that what you need ?
var ds = date.toUTCString();
console.log(ds.substr(0,24)); // Displays Tue Mar 29 2016 16:14:43
I have this string "Mon Oct 21 2013 21:00:00 GMT-0300 (ART)" and I need to convert it to the timezone (GMT-0300) using just moment.js (not moment-timezone.js)
I'm doing this but it's returning the same hour.
var startDateTime = moment(date).format('YYYY-MM-DD HH:mm Z'),
startMoment = moment.parseZone(startDateTime).zone();
console.log(moment(startDateTime).zone(startMoment).format("YYYY-MM-DD HH:mm"));
Any help ?
To convert a moment object with timezone A to timezone B, you can do the following:
var startDateTime = "Mon Oct 21 2013 21:00:00 GMT-0300 (ART)";
var newDateTime = moment(startDateTime).zone('-0400').format('YYYY-MM-DD HH:mm')
Also note that in your example, the initial time "Mon Oct 21 2013 21:00:00 GMT-0300 (ART)" is already GMT-0300.
I want to convert a date, given as yyyy-mm-ddThh:mm:ss to a Javascript Date.
First attemp:
var str = "2013-10-31T18:15:30";
var date = new Date(str)
Returns Thu Oct 31 2013 18:15:30 GMT+0100 (CET).
Second attemp:
var str = "2013-10-31T18:15:30";
var str_parts = str.split("T");
var date_parts = str_parts[0].split("-");
var time_parts = str_parts[1].split(":");
var date = new Date(date_parts[0], date_parts[1], date_parts[2], time_parts[0], time_parts[1], time_parts[2]);
Returns Sun Dec 01 2013 18:15:30 GMT+0100 (CET). Do I miss something? Shouldn't this also return Thu Oct 31 2013 18:15:30 GMT+0100 (CET)? Somehow, the date is incorrect, while the time fits.
The corresponding fiddle: http://jsfiddle.net/4CLAj/2/
In the Date constructor Date(year,month,day,hour,minute,second) the month is zero-based, i.e. January is zero.
So for the second attempt:
var date = new Date(date_parts[0], Number(date_parts[1]) - 1, date_parts[2], time_parts[0], time_parts[1], time_parts[2]);
See http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf section 15.9.1.4
I get time in milliseconds from the server. I convert it to Date and get -
Mon Jul 22 2013 11:16:01 GMT+0200 (W. Europe Daylight Time) as the date in the record.
I want to separate out data of Monday, Tuesday etc into arrays. I am thinking of converting this date to Mon Jul 22 2013 23:59:59 GMT+0200 (W. Europe Daylight Time) and then filter out the records.
How can i change the date to the required end of the day time? or is there an easier way to do this ?
You could always construct a new DateTime object just using the year, month and day properties from the existing date, like so:
var actualDate = new Date(); // 2013-07-30 17:11:00
var endOfDayDate = new Date(actualDate.getFullYear()
,actualDate.getMonth()
,actualDate.getDate()
,23,59,59); // 2013-07-30 23:59:59
For future visitors, just use
var start = new Date();
var end = new Date();
start.setHours(0,0,0,0);
end.setHours(23,59,59,999);
Using http://momentjs.com:
var now = new Date().getTime();
var endOfDay = moment(now).endOf("day").toDate(); // Wed Jan 20 2016 23:59:59 GMT-0800 (PST)
var actualDate = new Date()
var eodDate = new Date(Math.floor(actualDate.getTime()/86400000+1)*86400000 + actualDate .getTimezoneOffset()*60000 - 1000)
where 86400000 are total milliseconds in a day
If two Date Objects are on the same day then they have the same Date String:
new Date('1374488161000').toDateString()
=> "Tue Jul 30 2013"
new Date('13744917610403').toDateString()
=> "Tue Jul 30 2013"
Although a rather naive method of comparing days, it's probably the simplest comparison.