Develop Reference

Jquery- date conversion issue

My current time zone is getting added when converting date using "new Date()".
var date = "2019-06-03T23:32:59.2354387Z";
var date1 = new Date(date);
console.log(date1);
Expected result: 03-Jun-19 23:32:00
Actual result: 04-Jun-19 02:32:00
please find the fiddle here
https://jsfiddle.net/as6htw9p/

More specific to your scenario with keeping the format, this should work. It's just a shame that the integers provided are formatted like '1' instead of '01' so I have had to add a ‘0’ to the start of the variables.
This should output the exact result you want.
var date = new Date();
var monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug',
'Sep', 'Oct', 'Nov', 'Dec']
var day = '0' + (date.getDay() + 2); // 003
day = day.slice(-2) + '-'; // 03-
var month = date.getMonth(); // 5
month = monthNames[month]; // Jun
month = month + '-'; // Jun-
var year = date.getFullYear() + ''; // 2019
year = year.slice(-2) + ' '; // 19
var hour = '0' + date.getHours(); // 018
hour = hour.slice(-2) + ':'; // 18:
var minutes = '0' + date.getMinutes(); // 025
minutes = minutes.slice(-2) + ':'; // 25:
var seconds = '0' + date.getSeconds(); // 06
seconds = seconds.slice(-2); // 06
var now = day + month + year + hour + minutes + seconds;

Date output in JavaScript is by default in local time. You should use UTC get/set if you need GMT format.
Try this:
utc_date = date1.toUTCString();
console.log(utc_date);

Convert String (30-jul-2016) into Date(2016-07-30) using Javascript

I want to convert string in date format.
My String format is 30-Jul-2016 And want to convert into 2016-07-30. Only using javascript.

To be as dynamic as possible I advise to implement first Douglas Crockford's supplant function, and assign it to String Object's prototype (How can I do string interpolation in JavaScript?). Here's how you do it:
String.prototype.supplant = function (o) {
return this.replace(/{([^{}]*)}/g,
function (a, b) {
var r = o[b];
return typeof r === 'string' || typeof r === 'number' ? r : a;
}
);
};
After that, you can implement something like this:
function changeFormat(from, to){
var months = [
'Jan',
'Feb',
'Mar',
'Apr',
'May',
'Jun',
'Jul',
'Aug',
'Sep',
'Oct',
'Nov',
'Dec'
];
var date = new Date(from);
return to.supplant({
YYYY: date.getFullYear(),
MMM: months[date.getMonth()],
MM: date.getMonth()+1 > 9 ? date.getMonth()+1 : '0'+parseInt(date.getMonth()+1),
DD: date.getDate() > 9 ? date.getDate() : '0' + parseInt(date.getDate())
})
}
And this is how it would work:
changeFormat("30-Jul-2016","{YYYY}-{MM}-{DD}") // 2016-07-30
Example:
String.prototype.supplant = function (o) {
return this.replace(/{([^{}]*)}/g,
function (a, b) {
var r = o[b];
return typeof r === 'string' || typeof r === 'number' ? r : a;
}
);
};
function changeFormat(from, to){
var months = [
'Jan',
'Feb',
'Mar',
'Apr',
'May',
'Jun',
'Jul',
'Aug',
'Sep',
'Oct',
'Nov',
'Dec'
];
var date = new Date(from);
return to.supplant({
YYYY: date.getFullYear(),
MMM: months[date.getMonth()],
MM: date.getMonth()+1 > 9 ? date.getMonth()+1 : '0'+parseInt(date.getMonth()+1),
DD: date.getDate() > 9 ? date.getDate() : '0' + parseInt(date.getDate())
})
}
console.log(changeFormat("30-Jul-2016","{YYYY}-{MM}-{DD}"));

var d = new Date('30-Jul-2016'.split('-').join(' ')),
dFormated = d.getFullYear() + '-' + ('0' + (d.getMonth() + 1)).slice(-2) + '-' + d.getDate();
console.log(dFormated);

Another way:
function formatDate(string) {
var date = new Date(string),
dd = date.getDate(),
mm = date.getMonth() + 1,
yyyy = date.getFullYear();
dd = dd < 10 ? '0' + dd : dd;
mm = mm < 10 ? '0' + mm : mm;
return yyyy + '-' + mm + '-' + dd;
}
console.log(formatDate('30-Jul-2016')); // 2016-07-30

Without a library, like Moment, the best way would be to keep an array of months to get the numerical values (there's no guarantee every browser will parse that date), and then just split the string and parse it
var months = [
'Jan',
'Feb',
'Mar',
'Apr',
'May',
'Jun',
'Jul',
'Aug',
'Sep',
'Oct',
'Nov',
'Dec'
];
function pad(x) {return x < 10 ? '0' + x : x}; // zero padding
var str = "30-Jul-2016";
var parts = str.split('-');
var date = new Date(parts[2], months.indexOf(parts[1]), parts[0]);
// now you can output whatever
var new_date = date.getFullYear() + '-' + pad(date.getMonth() + 1) + '-' + pad(date.getDate());
document.body.innerHTML = new_date;

Try this
var date = '30-Jul-2016';
date = date.split('-').join(' ');
var d = new Date(date);
alert(d.getFullYear() + '-'+(d.getMonth()+1) +'-'+ d.getDate());
console.log(d.getFullYear() + '-'+(d.getMonth()+1) +'-'+ d.getDate());

Try this code
var date = '30-Jul-2016';
date = date.split('-').join(' ');
var d = new Date(date);
dd = d.getDate();
mm = d.getMonth() + 1;
yyyy = d.getFullYear();
dd = dd < 10 ? '0' + dd : dd;
mm = mm < 10 ? '0' + mm : mm;
alert(yyyy + '-'+mm +'-'+ dd);

Convert m-yyyy format to string

I have a date format that is like this
"5-2015"
How can I convert it so that it appears as "May 2015" on screen?

You could try MomentJS http://momentjs.com/ which is a Date/Time library for Javascript. I believe the syntax would be moment(yourDate, 'M-YYYY').format('MMM YYYY');
If you want to roll your own:
function format(date) {
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
var month = date.substring(0, date.indexOf('-'));
var year = date.substring(date.indexOf('-') + 1);
return months[parseInt(month) - 1] + ' ' + year;
}
var formatted = format('5-2015');

Assuming all of your dates are in the format of "5-2015" (e.g. 6-2015 or 12-2015), what you can do is use the split function on javascript split the string value into months and years.
For example:
var date = "5-2015";
date.split("-"); //splits the date whenever it sees the dash
var month;
if(date[0] == "5"){ //accesses the first split value (the month value) and check if it's a month.
month = "May";
} //do this with the rest of the months.
var finalString = month + " " + date[1]; //constructs the final string, i.e. May 2015
alert(finalString);

You can go like this:
function parseDate(dateString) {
var d = dateString.split("-"); // ["5", "2015"]
// Month is 0-based, so subtract 1
var D = new Date(d[1], d[0]-1).toString().split(" "); // ["Fri", "May", "01", "2015", "00:00:00", "GMT+0200", "(Central", "Europe", "Daylight", "Time)"]
return D[1] + " " + D[3];
}
(function() {
alert(parseDate("5-2015"));
}());

Convert yyyymmdd to dd-mmm-yyyy [duplicate]

This question already has answers here:
JavaScript convert string into Date with format (dd mmm yyyy) i.e. 01 Jun 2012
(6 answers)
Closed 8 years ago.
I have a date in the format yyyymmdd.
Ex: 20141004
What I need to do is to convert it like dd-mmm-yyyy.
Ex: 4 Oct 2014
There is a similar question here: JavaScript convert string into Date with format (dd mmm yyyy) i.e. 01 Jun 2012
The difference is that I have no "/" character to split by.
Another limitation is that I cannot use any external library, as this code is used inside another tool, so I need native JS.

I did it like this:
var date = "20141004";
var y = date.substring(0, 4);
var m = parseInt(date.substring(4, 6), 10);
var d = date.substring(6, 8);
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
mm = months[m - 1];
document.write(d + " " + mm + " " + y);

Reworking a date string from yyyy-mm-dd to dd/mm/yyyy [duplicate]

This question already has answers here:
Where can I find documentation on formatting a date in JavaScript?
(39 answers)
Closed 8 years ago.
I need your help,
how can I rework and restring a date string from yyyy-mm-ddd to dd/mm/yyyy?
Example: 2014-06-27, firstly replace the dash with a slash, then shift the order of the digits around to form 27/06/2014
I am not sure as to how to go about doing this?
Thanks

I've made a custom date string format function, you can use that.
var getDateString = function(date, format) {
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
getPaddedComp = function(comp) {
return ((parseInt(comp) < 10) ? ('0' + comp) : comp)
},
formattedDate = format,
o = {
"y+": date.getFullYear(), // year
"M+": months[date.getMonth()], //month
"d+": getPaddedComp(date.getDate()), //day
"h+": getPaddedComp((date.getHours() > 12) ? date.getHours() % 12 : date.getHours()), //hour
"H+": getPaddedComp(date.getHours()), //hour
"m+": getPaddedComp(date.getMinutes()), //minute
"s+": getPaddedComp(date.getSeconds()), //second
"S+": getPaddedComp(date.getMilliseconds()), //millisecond,
"t+": (date.getHours() >= 12) ? 'PM' : 'AM'
};
for (var k in o) {
if (new RegExp("(" + k + ")").test(format)) {
formattedDate = formattedDate.replace(RegExp.$1, o[k]);
}
}
return formattedDate;
};
And now suppose you've :-
var date = "2014-06-27";
So to format this date you write:-
var formattedDate = getDateString(new Date(date), "d/M/y")

if you're using a string, then the string.split would be an easy way to do this.
C# code:
public void testDateTime()
{
string dashedDate = "2014-01-18"; // yyyy-mm-dd
var stringArray = dashedDate.Split('-');
string newDate = stringArray[2] + "/" + stringArray[1] + "/" + stringArray[0];
//convert to dd/mm/yyyy
Assert.AreEqual(newDate, "18/01/2014");
}