How do I format a Javascript Date object as a string? (Preferably in the format: 10-Aug-2010)
How do I format a date in JavaScript?
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5
On
Use the date.format library:
var dateFormat = require('dateformat');
var now = new Date();
dateFormat(now, "dddd, mmmm dS, yyyy, h:MM:ss TT");
returns:
Saturday, June 9th, 2007, 5:46:21 PM
8
On
Note (2022-10):
toLocaleFormathas been deprecated for some time and was removed from Firefox as of version 58. SeetoLocaleFormat
I think you can just use the non-standard Date method toLocaleFormat(formatString)
formatString: A format string in the same format expected by the strftime() function in C.
var today = new Date();
today.toLocaleFormat('%d-%b-%Y'); // 30-Dec-2011
References:
9
On
Well, what I wanted was to convert today's date to a MySQL friendly date string like 2012-06-23, and to use that string as a parameter in one of my queries. The simple solution I've found is this:
var today = new Date().toISOString().slice(0, 10);
Keep in mind that the above solution does not take into account your timezone offset.
You might consider using this function instead:
function toJSONLocal (date) {
var local = new Date(date);
local.setMinutes(date.getMinutes() - date.getTimezoneOffset());
return local.toJSON().slice(0, 10);
}
This will give you the correct date in case you are executing this code around the start/end of the day.
var date = new Date();
function toLocal(date) {
var local = new Date(date);
local.setMinutes(date.getMinutes() - date.getTimezoneOffset());
return local.toJSON();
}
function toJSONLocal(date) {
var local = new Date(date);
local.setMinutes(date.getMinutes() - date.getTimezoneOffset());
return local.toJSON().slice(0, 10);
}
// check out your devtools console
console.log(date.toJSON());
console.log(date.toISOString());
console.log(toLocal(date));
console.log(toJSONLocal(date));4
On
Add the jQuery UI plugin to your page:
function DateFormate(dateFormate, datetime) {
return $.datepicker.formatDate(dateFormate, datetime);
};
0
On
Sugar.js has excellent extensions to the Date object, including a Date.format method.
Examples from the documentation:
Date.create().format('{Weekday} {Month} {dd}, {yyyy}');
Date.create().format('{12hr}:{mm}{tt}')
0
On
Here's is some code I just wrote to handle the date formatting for a project I'm working on. It mimics the PHP date formatting functionality to suit my needs. Feel free to use it, it's just extending the already existing Date() object. This may not be the most elegant solution but it's working for my needs.
var d = new Date();
d_string = d.format("m/d/Y h:i:s");
/**************************************
* Date class extension
*
*/
// Provide month names
Date.prototype.getMonthName = function(){
var month_names = [
'January',
'February',
'March',
'April',
'May',
'June',
'July',
'August',
'September',
'October',
'November',
'December'
];
return month_names[this.getMonth()];
}
// Provide month abbreviation
Date.prototype.getMonthAbbr = function(){
var month_abbrs = [
'Jan',
'Feb',
'Mar',
'Apr',
'May',
'Jun',
'Jul',
'Aug',
'Sep',
'Oct',
'Nov',
'Dec'
];
return month_abbrs[this.getMonth()];
}
// Provide full day of week name
Date.prototype.getDayFull = function(){
var days_full = [
'Sunday',
'Monday',
'Tuesday',
'Wednesday',
'Thursday',
'Friday',
'Saturday'
];
return days_full[this.getDay()];
};
// Provide full day of week name
Date.prototype.getDayAbbr = function(){
var days_abbr = [
'Sun',
'Mon',
'Tue',
'Wed',
'Thur',
'Fri',
'Sat'
];
return days_abbr[this.getDay()];
};
// Provide the day of year 1-365
Date.prototype.getDayOfYear = function() {
var onejan = new Date(this.getFullYear(),0,1);
return Math.ceil((this - onejan) / 86400000);
};
// Provide the day suffix (st,nd,rd,th)
Date.prototype.getDaySuffix = function() {
var d = this.getDate();
var sfx = ["th","st","nd","rd"];
var val = d%100;
return (sfx[(val-20)%10] || sfx[val] || sfx[0]);
};
// Provide Week of Year
Date.prototype.getWeekOfYear = function() {
var onejan = new Date(this.getFullYear(),0,1);
return Math.ceil((((this - onejan) / 86400000) + onejan.getDay()+1)/7);
}
// Provide if it is a leap year or not
Date.prototype.isLeapYear = function(){
var yr = this.getFullYear();
if ((parseInt(yr)%4) == 0){
if (parseInt(yr)%100 == 0){
if (parseInt(yr)%400 != 0){
return false;
}
if (parseInt(yr)%400 == 0){
return true;
}
}
if (parseInt(yr)%100 != 0){
return true;
}
}
if ((parseInt(yr)%4) != 0){
return false;
}
};
// Provide Number of Days in a given month
Date.prototype.getMonthDayCount = function() {
var month_day_counts = [
31,
this.isLeapYear() ? 29 : 28,
31,
30,
31,
30,
31,
31,
30,
31,
30,
31
];
return month_day_counts[this.getMonth()];
}
// format provided date into this.format format
Date.prototype.format = function(dateFormat){
// break apart format string into array of characters
dateFormat = dateFormat.split("");
var date = this.getDate(),
month = this.getMonth(),
hours = this.getHours(),
minutes = this.getMinutes(),
seconds = this.getSeconds();
// get all date properties ( based on PHP date object functionality )
var date_props = {
d: date < 10 ? '0'+date : date,
D: this.getDayAbbr(),
j: this.getDate(),
l: this.getDayFull(),
S: this.getDaySuffix(),
w: this.getDay(),
z: this.getDayOfYear(),
W: this.getWeekOfYear(),
F: this.getMonthName(),
m: month < 10 ? '0'+(month+1) : month+1,
M: this.getMonthAbbr(),
n: month+1,
t: this.getMonthDayCount(),
L: this.isLeapYear() ? '1' : '0',
Y: this.getFullYear(),
y: this.getFullYear()+''.substring(2,4),
a: hours > 12 ? 'pm' : 'am',
A: hours > 12 ? 'PM' : 'AM',
g: hours % 12 > 0 ? hours % 12 : 12,
G: hours > 0 ? hours : "12",
h: hours % 12 > 0 ? hours % 12 : 12,
H: hours,
i: minutes < 10 ? '0' + minutes : minutes,
s: seconds < 10 ? '0' + seconds : seconds
};
// loop through format array of characters and add matching data else add the format character (:,/, etc.)
var date_string = "";
for(var i=0;i<dateFormat.length;i++){
var f = dateFormat[i];
if(f.match(/[a-zA-Z]/g)){
date_string += date_props[f] ? date_props[f] : '';
} else {
date_string += f;
}
}
return date_string;
};
/*
*
* END - Date class extension
*
************************************/
0
On
If you are already using jQuery UI in your project you could do it this way:
var formatted = $.datepicker.formatDate("M d, yy", new Date("2014-07-08T09:02:21.377"));
// formatted will be 'Jul 8, 2014'
Some datepicker date format options to play with are available here.
1
On
Here is a script that does exactly what you want
https://github.com/UziTech/js-date-format
var d = new Date("2010-8-10");
document.write(d.format("DD-MMM-YYYY"));
1
On
@Sébastien -- alternative all browser support
new Date(parseInt(496407600)*1000).toLocaleDateString('de-DE', {
year: 'numeric',
month: '2-digit',
day: '2-digit'
}).replace(/\./g, '/');
Documentation: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString
High-order tagged template literal example based on Date.toLocaleDateString:
const date = new Date(Date.UTC(2020, 4, 2, 3, 23, 16, 738));
const fmt = (dt, lc = "en-US") => (str, ...expr) =>
str.map((str, i) => str + (expr[i]?dt.toLocaleDateString(lc, expr[i]) :'')).join('')
console.log(fmt(date)`${{year: 'numeric'}}-${{month: '2-digit'}}-${{day: '2-digit'}}`);
// expected output: "2020-05-02"
0
On
If you are using jQuery UI in your code, there is an inbuilt function called formatDate(). I am using it this way to format today's date:
var testdate = Date();
testdate = $.datepicker.formatDate( "d-M-yy",new Date(testdate));
alert(testdate);
You can see many other examples of formatting date in the jQuery UI documentation.
2
On
Plain JavaScript is the best pick for small onetimers.
On the other hand, if you need more date stuff, MomentJS is a great solution.
For example:
moment().format('YYYY-MM-DD HH:m:s'); // now() -> 2015-03-24 14:32:20
moment("20111031", "YYYYMMDD").fromNow(); // 3 years ago
moment("20120620", "YYYYMMDD").fromNow(); // 3 years ago
moment().startOf('day').fromNow(); // 11 hours ago
moment().endOf('day').fromNow(); // in 13 hours
1
On
Use:
thisDate = new Date(parseInt(jsonDateString.replace('/Date(', '')));
formattedDate = (thisDate.getMonth() + 1) + "/" + (thisDate.getDate()+1) + "/" + thisDate.getFullYear();
This takes a JSON date, "/Date(1429573751663)/" and produces as the formatted string:
"4/21/2015"
3
On
If you need to quickly format your date using plain JavaScript, use getDate, getMonth + 1, getFullYear, getHours and getMinutes:
var d = new Date();
var datestring = d.getDate() + "-" + (d.getMonth()+1) + "-" + d.getFullYear() + " " +
d.getHours() + ":" + d.getMinutes();
// 16-5-2015 9:50
Or, if you need it to be padded with zeros:
var datestring = ("0" + d.getDate()).slice(-2) + "-" + ("0"+(d.getMonth()+1)).slice(-2) + "-" +
d.getFullYear() + " " + ("0" + d.getHours()).slice(-2) + ":" + ("0" + d.getMinutes()).slice(-2);
// 16-05-2015 09:50
0
On
Requested format in one line - no libraries and no Date methods, just regex:
var d = (new Date()).toString().replace(/\S+\s(\S+)\s(\d+)\s(\d+)\s.*/,'$2-$1-$3');
// date will be formatted as "14-Oct-2015" (pass any date object in place of 'new Date()')
In my testing, this works reliably in the major browsers (Chrome, Safari, Firefox and IE.) As @RobG pointed out, the output of Date.prototype.toString() is implementation-dependent, so for international or non-browser implementations, just test the output to be sure it works right in your JavaScript engine. You can even add some code to test the string output and make sure it's matching what you expect before you do the regex replace.
0
On
If you are already using ExtJS in your project you could use Ext.Date:
var date = new Date();
Ext.Date.format(date, "d-M-Y");
returns:
"11-Nov-2015"
1
On
I use the following. It is simple and works fine.
var dtFormat = require('dtformat');
var today = new Date();
dtFormat(today, "dddd, mmmm dS, yyyy, h:MM:ss TT");
Or this:
var now = new Date()
months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
var formattedDate = now.getDate() + "-" + months[now.getMonth()] + "-" + now.getFullYear()
alert(formattedDate)
0
On
There is a new library, smarti.to.js, for localized formatting of JavaScript numbers, dates and JSON dates (Microsoft or ISO8601).
Example:
new Date('2015-1-1').to('dd.MM.yy') // Outputs 01.01.2015
"2015-01-01T10:11:12.123Z".to('dd.MM.yy') // Outputs 01.01.2015
There are also custom short patterns defined in the localization file (smarti.to.{culture}.js). Example (smarti.to.et-EE.js):
new Date('2015-1-1').to('d') // Outputs 1.01.2015
And a multiformatting ability:
smarti.format('{0:n2} + {1:n2} = {2:n2}', 1, 2, 3) // Output: 1,00 + 2,00 = 3,00
10
On
If you need slightly less control over formatting than the currently accepted answer, Date#toLocaleDateString can be used to create standard locale-specific renderings. The locale and options arguments let applications specify the language whose formatting conventions should be used, and allow some customization of the rendering.
Options key examples:
- day:
The representation of the day.
Possible values are "numeric", "2-digit". - weekday:
The representation of the weekday.
Possible values are "narrow", "short", "long". - year:
The representation of the year.
Possible values are "numeric", "2-digit". - month:
The representation of the month.
Possible values are "numeric", "2-digit", "narrow", "short", "long". - hour:
The representation of the hour.
Possible values are "numeric", "2-digit". - minute:
The representation of the minute.
Possible values are "numeric", "2-digit". - second:
The representation of the second.
Possible values are "numeric", 2-digit". - hour12:
The representation of time format.
Accepts boolean true or false
All these keys are optional. You can change the number of options values based on your requirements, and this will also reflect the presence of each date time term.
Note: If you would only like to configure the content options, but still use the current locale, passing null for the first parameter will cause an error. Use undefined instead.
For different languages:
- "en-US": For American English
- "en-GB": For British English
- "hi-IN": For Hindi
- "ja-JP": For Japanese
You can use more language options.
For example
var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
var today = new Date();
console.log(today.toLocaleDateString("en-US")); // 9/17/2016
console.log(today.toLocaleDateString("en-US", options)); // Saturday, September 17, 2016
console.log(today.toLocaleDateString("hi-IN", options)); // शनिवार, 17 सितंबर 2016You can also use the toLocaleString() method for the same purpose. The only difference is this function provides the time when you don't pass any options.
// Example
9/17/2016, 1:21:34 PM
References:
0
On
Short, widely compatible approach:
function formatDate(date) {
date.toISOString()
.replace(/^(\d+)-(\d+)-(\d+).*$/, // Only extract Y-M-D
function (a,y,m,d) {
return [
d, // Day
['Jan','Feb','Mar','Apr','May','Jun', // Month Names
'Jul','Ago','Sep','Oct','Nov','Dec']
[m-1], // Month
y // Year
].join('-') // Stitch together
})
}
Or, as a single line:
date.toISOString().replace(/^(\d+)-(\d+)-(\d+)T(\d+):(\d+):(\d+).(\d+)Z$/, function (a,y,m,d) {return [d,['Jan','Feb','Mar','Apr','May','Jun','Jul','Ago','Sep','Oct','Nov','Dic'][m-1],y].join('-')})
0
On
In modern browsers (*), you can just do this:
var today = new Date().toLocaleDateString('en-GB', {
day : 'numeric',
month : 'short',
year : 'numeric'
}).split(' ').join('-');
Output if executed today (january 24ᵗʰ, 2016):
'24-Jan-2016'
(*) According to MDN, "modern browsers" means Chrome 24+, Firefox 29+, Internet Explorer 11, Edge 12+, Opera 15+ & Safari nightly build.
1
On
2.39KB minified. One file. https://github.com/rhroyston/clock-js
10-Aug-2010 would be:
var str = clock.month
str.charAt(0).toUpperCase() + str.slice(1,3); //gets you "Aug"
console.log(clock.day + '-' + str + '-' + clock.year); //gets you 10-Aug-2010
4
On
This is how I implemented for my npm plugins
var monthNames = [
"January", "February", "March",
"April", "May", "June", "July",
"August", "September", "October",
"November", "December"
];
var Days = [
"Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday"
];
var formatDate = function(dt,format){
format = format.replace('ss', pad(dt.getSeconds(),2));
format = format.replace('s', dt.getSeconds());
format = format.replace('dd', pad(dt.getDate(),2));
format = format.replace('d', dt.getDate());
format = format.replace('mm', pad(dt.getMinutes(),2));
format = format.replace('m', dt.getMinutes());
format = format.replace('MMMM', monthNames[dt.getMonth()]);
format = format.replace('MMM', monthNames[dt.getMonth()].substring(0,3));
format = format.replace('MM', pad(dt.getMonth()+1,2));
format = format.replace(/M(?![ao])/, dt.getMonth()+1);
format = format.replace('DD', Days[dt.getDay()]);
format = format.replace(/D(?!e)/, Days[dt.getDay()].substring(0,3));
format = format.replace('yyyy', dt.getFullYear());
format = format.replace('YYYY', dt.getFullYear());
format = format.replace('yy', (dt.getFullYear()+"").substring(2));
format = format.replace('YY', (dt.getFullYear()+"").substring(2));
format = format.replace('HH', pad(dt.getHours(),2));
format = format.replace('H', dt.getHours());
return format;
}
pad = function(n, width, z) {
z = z || '0';
n = n + '';
return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
}
0
On
If you fancy a short, human-readable, function - this is easily adjustable to suit you.
The timeStamp parameter is milliseconds from 1970 - it is returned by new Date().getTime() and many other devices...
OK, I changed my mind. I included an extra function for zero padding. Curses!
function zeroPad(aNumber) {
return ("0"+aNumber).slice(-2);
}
function humanTime(timeStamp) {
var M = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
var D = new Date(timeStamp); // 23 Aug 2016 16:45:59 <-- Desired format.
return D.getDate() + " " + M[D.getMonth()] + " " + D.getFullYear() + " " + D.getHours() + ":" + zeroPad(d.getMinutes()) + ":" + zeroPad(D.getSeconds());
}
1
On
Inspired by JD Smith's marvellous regular expression solution, I suddenly had this head-splitting idea:
var D = Date().toString().split(" ");
console.log(D[2] + "-" + D[1] + "-" + D[3]);3
On
Custom formatting function:
For fixed formats, a simple function make the job. The following example generates the international format YYYY-MM-DD:
function dateToYMD(date) {
var d = date.getDate();
var m = date.getMonth() + 1; //Month from 0 to 11
var y = date.getFullYear();
return '' + y + '-' + (m<=9 ? '0' + m : m) + '-' + (d <= 9 ? '0' + d : d);
}
console.log(dateToYMD(new Date(2017,10,5))); // Nov 5The OP format may be generated like:
function dateToYMD(date) {
var strArray=['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
var d = date.getDate();
var m = strArray[date.getMonth()];
var y = date.getFullYear();
return '' + (d <= 9 ? '0' + d : d) + '-' + m + '-' + y;
}
console.log(dateToYMD(new Date(2017,10,5))); // Nov 5Note: It is, however, usually not a good idea to extend the JavaScript standard libraries (e.g. by adding this function to the prototype of Date).
A more advanced function could generate configurable output based on a format parameter.
If to write a formatting function is too long, there are plenty of libraries around which does it. Some other answers already enumerate them. But increasing dependencies also has it counter-part.
Standard ECMAScript formatting functions:
Since more recent versions of ECMAScript, the Date class has some specific formatting functions:
toDateString: Implementation dependent, show only the date.
https://262.ecma-international.org/#sec-date.prototype.todatestring
new Date().toDateString(); // e.g. "Fri Nov 11 2016"
toISOString: Show ISO 8601 date and time.
https://262.ecma-international.org/#sec-date.prototype.toisostring
new Date().toISOString(); // e.g. "2016-11-21T08:00:00.000Z"
toJSON: Stringifier for JSON.
https://262.ecma-international.org/#sec-date.prototype.tojson
new Date().toJSON(); // e.g. "2016-11-21T08:00:00.000Z"
toLocaleDateString: Implementation dependent, a date in locale format.
https://262.ecma-international.org/#sec-date.prototype.tolocaledatestring
new Date().toLocaleDateString(); // e.g. "21/11/2016"
toLocaleString: Implementation dependent, a date&time in locale format.
https://262.ecma-international.org/#sec-date.prototype.tolocalestring
new Date().toLocaleString(); // e.g. "21/11/2016, 08:00:00 AM"
toLocaleTimeString: Implementation dependent, a time in locale format.
https://262.ecma-international.org/#sec-date.prototype.tolocaletimestring
new Date().toLocaleTimeString(); // e.g. "08:00:00 AM"
toString: Generic toString for Date.
https://262.ecma-international.org/#sec-date.prototype.tostring
new Date().toString(); // e.g. "Fri Nov 21 2016 08:00:00 GMT+0100 (W. Europe Standard Time)"
Note: it is possible to generate custom output out of those formatting >
new Date().toISOString().slice(0,10); //return YYYY-MM-DD
Examples snippets:
console.log("1) "+ new Date().toDateString());
console.log("2) "+ new Date().toISOString());
console.log("3) "+ new Date().toJSON());
console.log("4) "+ new Date().toLocaleDateString());
console.log("5) "+ new Date().toLocaleString());
console.log("6) "+ new Date().toLocaleTimeString());
console.log("7) "+ new Date().toString());
console.log("8) "+ new Date().toISOString().slice(0,10));Specifying the locale for standard functions:
Some of the standard functions listed above are dependent on the locale:
toLocaleDateString()toLocaleTimeString()toLocalString()
This is because different cultures make uses of different formats, and express their date or time in different ways. The function by default will return the format configured on the device it runs, but this can be specified by setting the arguments (ECMA-402).
toLocaleDateString([locales[, options]])
toLocaleTimeString([locales[, options]])
toLocaleString([locales[, options]])
//e.g. toLocaleDateString('ko-KR');
The option second parameter, allow for configuring more specific format inside the selected locale. For instance, the month can be show as full-text or abreviation.
toLocaleString('en-GB', { month: 'short' })
toLocaleString('en-GB', { month: 'long' })
Examples snippets:
console.log("1) "+ new Date().toLocaleString('en-US'));
console.log("2) "+ new Date().toLocaleString('ko-KR'));
console.log("3) "+ new Date().toLocaleString('de-CH'));
console.log("4) "+ new Date().toLocaleString('en-GB', { hour12: false }));
console.log("5) "+ new Date().toLocaleString('en-GB', { hour12: true }));Some good practices regarding locales:
- Most people don't like their dates to appear in a foreigner format, consequently, keep the default locale whenever possible (over setting 'en-US' everywhere).
- Implementing conversion from/to UTC can be challenging (considering DST, time-zone not multiple of 1 hour, etc.). Use a well-tested library when possible.
- Don't assume the locale correlate to a country: several countries have many of them (Canada, India, etc.)
- Avoid detecting the locale through non-standard ways. Here you can read about the multiple pitfalls: detecting the keyboard layout, detecting the locale by the geographic location, etc..
2
On
OK, we have got something called Intl which is very useful for formatting a date in JavaScript these days:
Your date as below:
var date = '10/8/2010';
And you change to Date by using new Date() like below:
date = new Date(date);
And now you can format it any way you like using a list of locales like below:
date = new Intl.DateTimeFormat('en-AU').format(date); // Australian date format: "8/10/2010"
date = new Intl.DateTimeFormat('en-US').format(date); // USA date format: "10/8/2010"
date = new Intl.DateTimeFormat('ar-EG').format(date); // Arabic date format: "٨/١٠/٢٠١٠"
If you exactly want the format you mentioned above, you can do:
date = new Date(Date.UTC(2010, 7, 10, 0, 0, 0));
var options = {year: "numeric", month: "short", day: "numeric"};
date = new Intl.DateTimeFormat("en-AU", options).format(date).replace(/\s/g, '-');
And the result is going to be:
"10-Aug-2010"
For more see the Intl API and Intl.DateTimeFormat documentation.
0
On
Using an ECMAScript Edition 6 (ES6/ES2015) string template:
let d = new Date();
let formatted = `${d.getFullYear()}-${d.getMonth() + 1}-${d.getDate()}`;
If you need to change the delimiters:
const delimiter = '/';
let formatted = [d.getFullYear(), d.getMonth() + 1, d.getDate()].join(delimiter);
0
On
A useful and flexible way for formatting the DateTimes in JavaScript is Intl.DateTimeFormat:
var date = new Date();
var options = { year: 'numeric', month: 'short', day: '2-digit'};
var _resultDate = new Intl.DateTimeFormat('en-GB', options).format(date);
// The _resultDate is: "12 Oct 2017"
// Replace all spaces with - and then log it.
console.log(_resultDate.replace(/ /g,'-'));
Result Is: "12-Oct-2017"
The date and time formats can be customized using the options argument.
The Intl.DateTimeFormat object is a constructor for objects that enable language sensitive date and time formatting.
Syntax
new Intl.DateTimeFormat([locales[, options]])
Intl.DateTimeFormat.call(this[, locales[, options]])
Parameters
locales
Optional. A string with a BCP 47 language tag, or an array of such strings. For the general form and interpretation of the locales argument, see the Intl page. The following Unicode extension keys are allowed:
nu
Numbering system. Possible values include: "arab", "arabext", "bali", "beng", "deva", "fullwide", "gujr", "guru", "hanidec", "khmr", "knda", "laoo", "latn", "limb", "mlym", "mong", "mymr", "orya", "tamldec", "telu", "thai", "tibt".
ca
Calendar. Possible values include: "buddhist", "chinese", "coptic", "ethioaa", "ethiopic", "gregory", "hebrew", "indian", "islamic", "islamicc", "iso8601", "japanese", "persian", "roc".
Options
Optional. An object with some or all of the following properties:
localeMatcher
The locale matching algorithm to use. Possible values are "lookup" and "best fit"; the default is "best fit". For information about this option, see the Intl page.
timeZone
The time zone to use. The only value implementations must recognize is "UTC"; the default is the runtime's default time zone. Implementations may also recognize the time zone names of the IANA time zone database, such as "Asia/Shanghai", "Asia/Kolkata", "America/New_York".
hour12
Whether to use 12-hour time (as opposed to 24-hour time). Possible values are true and false; the default is locale dependent.
formatMatcher
The format matching algorithm to use. Possible values are "basic" and "best fit"; the default is "best fit". See the following paragraphs for information about the use of this property.
The following properties describe the date-time components to use in formatted output and their desired representations. Implementations are required to support at least the following subsets:
weekday, year, month, day, hour, minute, second
weekday, year, month, day
year, month, day
year, month
month, day
hour, minute, second
hour, minute
Implementations may support other subsets, and requests will be negotiated against all available subset-representation combinations to find the best match. Two algorithms are available for this negotiation and selected by the formatMatcher property: A fully specified "basic" algorithm and an implementation dependent "best fit" algorithm.
weekday
The representation of the weekday. Possible values are "narrow", "short", "long".
era
The representation of the era. Possible values are "narrow", "short", "long".
year
The representation of the year. Possible values are "numeric", "2-digit".
month
The representation of the month. Possible values are "numeric", "2-digit", "narrow", "short", "long".
day
The representation of the day. Possible values are "numeric", "2-digit".
hour
The representation of the hour. Possible values are "numeric", "2-digit".
minute
The representation of the minute. Possible values are "numeric", "2-digit".
second
The representation of the second. Possible values are "numeric", "2-digit".
timeZoneName
The representation of the time zone name. Possible values are "short", "long".
The default value for each date-time component property is undefined, but if all component properties are undefined, then the year, month and day are assumed to be "numeric".
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The following code will allow you to format the date to either DD-MM-YYYY (27-12-2017) or DD MMM YYYY (27 Dec 2017) :
/** Pad number to fit into nearest power of 10 */
function padNumber(number, prependChar, count) {
var out = '' + number; var i;
if (number < Math.pow(10, count))
while (out.length < ('' + Math.pow(10, count)).length) out = prependChar + out;
return out;
}
/* Format the date to 'DD-MM-YYYY' or 'DD MMM YYYY' */
function dateToDMY(date, useNumbersOnly) {
var months = [
'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct',
'Nov', 'Dec'
];
return '' + padNumber(date.getDate(), '0', 1) +
(useNumbersOnly? '-' + padNumber(date.getMonth() + 1, '0', 1) + '-' : ' ' + months[date.getMonth()] + ' ')
+ date.getFullYear();
}
Change the order of date.getFullYear() and padNumber(date.getDate(), '0', 1) to make a dateToYMD() function.
See repl.it example for details.
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DateFormatter.formatDate(new Date(2010,7,10), 'DD-MMM-YYYY')
=>10-Aug-2010
DateFormatter.formatDate(new Date(), 'YYYY-MM-DD HH:mm:ss')
=>2017-11-22 19:52:37
DateFormatter.formatDate(new Date(2005, 1, 2, 3, 4, 5), 'D DD DDD DDDD, M MM MMM MMMM, YY YYYY, h hh H HH, m mm, s ss, a A')
=>2 02 Wed Wednesday, 2 02 Feb February, 05 2005, 3 03 3 03, 4 04, 5 05, am AM
var DateFormatter = {
monthNames: [
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
],
dayNames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
formatDate: function (date, format) {
var self = this;
format = self.getProperDigits(format, /d+/gi, date.getDate());
format = self.getProperDigits(format, /M+/g, date.getMonth() + 1);
format = format.replace(/y+/gi, function (y) {
var len = y.length;
var year = date.getFullYear();
if (len == 2)
return (year + "").slice(-2);
else if (len == 4)
return year;
return y;
})
format = self.getProperDigits(format, /H+/g, date.getHours());
format = self.getProperDigits(format, /h+/g, self.getHours12(date.getHours()));
format = self.getProperDigits(format, /m+/g, date.getMinutes());
format = self.getProperDigits(format, /s+/gi, date.getSeconds());
format = format.replace(/a/ig, function (a) {
var amPm = self.getAmPm(date.getHours())
if (a === 'A')
return amPm.toUpperCase();
return amPm;
})
format = self.getFullOr3Letters(format, /d+/gi, self.dayNames, date.getDay())
format = self.getFullOr3Letters(format, /M+/g, self.monthNames, date.getMonth())
return format;
},
getProperDigits: function (format, regex, value) {
return format.replace(regex, function (m) {
var length = m.length;
if (length == 1)
return value;
else if (length == 2)
return ('0' + value).slice(-2);
return m;
})
},
getHours12: function (hours) {
// https://stackoverflow.com/questions/10556879/changing-the-1-24-hour-to-1-12-hour-for-the-gethours-method
return (hours + 24) % 12 || 12;
},
getAmPm: function (hours) {
// https://stackoverflow.com/questions/8888491/how-do-you-display-javascript-datetime-in-12-hour-am-pm-format
return hours >= 12 ? 'pm' : 'am';
},
getFullOr3Letters: function (format, regex, nameArray, value) {
return format.replace(regex, function (s) {
var len = s.length;
if (len == 3)
return nameArray[value].substr(0, 3);
else if (len == 4)
return nameArray[value];
return s;
})
}
}
console.log(DateFormatter.formatDate(new Date(), 'YYYY-MM-DD HH:mm:ss'));
console.log(DateFormatter.formatDate(new Date(), 'D DD DDD DDDD, M MM MMM MMMM, YY YYYY, h hh H HH, m mm, s ss, a A'));
console.log(DateFormatter.formatDate(new Date(2005, 1, 2, 3, 4, 5), 'D DD DDD DDDD, M MM MMM MMMM, YY YYYY, h hh H HH, m mm, s ss, a A'));The format description was taken from Ionic Framework (it does not support Z, UTC Timezone Offset)
Not thoroughly tested
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This is the main answer modified to have 3-char months, and 2-digit year:
function formatDate(date) {
var monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
var day = date.getDate(), monthIndex = date.getMonth(), year = date.getFullYear().toString().substr(-2);
return day + ' ' + monthNames[monthIndex] + ' ' + year;
}
document.write(formatDate(new Date()));1
On
For any one looking for a really simple ES6 solution to copy, paste and adopt:
const dateToString = d => `${d.getFullYear()}-${('00' + (d.getMonth() + 1)).slice(-2)}-${('00' + d.getDate()).slice(-2)}`
// how to use:
const myDate = new Date(Date.parse('04 Dec 1995 00:12:00 GMT'))
console.log(dateToString(myDate)) // 1995-12-040
On
Other way that you can format the date:
function formatDate(dDate,sMode){
var today = dDate;
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!
var yyyy = today.getFullYear();
if(dd<10) {
dd = '0'+dd
}
if(mm<10) {
mm = '0'+mm
}
if (sMode+""==""){
sMode = "dd/mm/yyyy";
}
if (sMode == "yyyy-mm-dd"){
return yyyy + "-" + mm + "-" + dd + "";
}
if (sMode == "dd/mm/yyyy"){
return dd + "/" + mm + "/" + yyyy;
}
}
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yy = 2-digit year;
yyyy = full year
M = digit month;
MM = 2-digit month;
MMM = short month name;
MMMM = full month name
EEEE = full weekday name;
EEE = short weekday name
d = digit day;
dd = 2-digit day
h = hours;
hh = 2-digit hours
m = minutes;
mm = 2-digit minutes
s = seconds;
ss = 2-digit seconds
S = miliseconds
Used similar formating as Class SimpleDateFormat (Java)
var monthNames = [
"January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December"
];
var dayOfWeekNames = [
"Sunday", "Monday", "Tuesday",
"Wednesday", "Thursday", "Friday", "Saturday"
];
function formatDate(date, formatStr){
if (!formatStr) {
formatStr = 'dd/mm/yyyy';
}
var day = date.getDate(),
month = date.getMonth(),
year = date.getFullYear(),
hour = date.getHours(),
minute = date.getMinutes(),
second = date.getSeconds(),
miliseconds = date.getMilliseconds(),
hh = twoDigitPad(hour),
mm = twoDigitPad(minute),
ss = twoDigitPad(second),
EEEE = dayOfWeekNames[date.getDay()],
EEE = EEEE.substr(0, 3),
dd = twoDigitPad(day),
M = month + 1,
MM = twoDigitPad(M),
MMMM = monthNames[month],
MMM = MMMM.substr(0, 3),
yyyy = year + "",
yy = yyyy.substr(2, 2)
;
return formatStr
.replace('hh', hh).replace('h', hour)
.replace('mm', mm).replace('m', minute)
.replace('ss', ss).replace('s', second)
.replace('S', miliseconds)
.replace('dd', dd).replace('d', day)
.replace('MMMM', MMMM).replace('MMM', MMM).replace('MM', MM).replace('M', M)
.replace('EEEE', EEEE).replace('EEE', EEE)
.replace('yyyy', yyyy)
.replace('yy', yy)
;
}
function twoDigitPad(num) {
return num < 10 ? "0" + num : num;
}
console.log(formatDate(new Date()));
console.log(formatDate(new Date(), 'EEEE, MMMM d, yyyy hh:mm:ss:S'));
console.log(formatDate(new Date(), 'EEE, MMM d, yyyy hh:mm'));
console.log(formatDate(new Date(), 'yyyy-MM-dd hh:mm:ss:S'));
console.log(formatDate(new Date(), 'yy-MM-dd hh:mm'));1
On
Packaged Solution: Luxon or date-fns
If you want to use a one solution to fit all, I recommend using date-fns or Luxon.
Luxon is hosted on the Moment.js website and developed by a Moment.js developer because Moment.js has limitations that the developer wanted to address but couldn't.
To install:
npm install luxon or yarn add luxon (visit link for other installation methods)
Example:
luxon.DateTime.fromISO('2010-08-10').toFormat('yyyy-LLL-dd');
Yields:
10-Aug-2010
Manual Solution
Using similar formatting as Moment.js, Class DateTimeFormatter (Java), and Class SimpleDateFormat (Java), I implemented a comprehensive solution formatDate(date, patternStr) where the code is easy to read and modify. You can display date, time, AM/PM, etc. See code for more examples.
Example:
formatDate(new Date(), 'EEEE, MMMM d, yyyy HH:mm:ss:S')
(formatDate is implemented in the code snippet below)
Yields:
Friday, October 12, 2018 18:11:23:445
Try the code out by clicking "Run code snippet."
Date and Time Patterns
yy = 2-digit year; yyyy = full year
M = digit month; MM = 2-digit month; MMM = short month name; MMMM = full month name
EEEE = full weekday name; EEE = short weekday name
d = digit day; dd = 2-digit day
h = hours am/pm; hh = 2-digit hours am/pm; H = hours; HH = 2-digit hours
m = minutes; mm = 2-digit minutes; aaa = AM/PM
s = seconds; ss = 2-digit seconds
S = miliseconds
var monthNames = [
"January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December"
];
var dayOfWeekNames = [
"Sunday", "Monday", "Tuesday",
"Wednesday", "Thursday", "Friday", "Saturday"
];
function formatDate(date, patternStr){
if (!patternStr) {
patternStr = 'M/d/yyyy';
}
var day = date.getDate(),
month = date.getMonth(),
year = date.getFullYear(),
hour = date.getHours(),
minute = date.getMinutes(),
second = date.getSeconds(),
miliseconds = date.getMilliseconds(),
h = hour % 12,
hh = twoDigitPad(h),
HH = twoDigitPad(hour),
mm = twoDigitPad(minute),
ss = twoDigitPad(second),
aaa = hour < 12 ? 'AM' : 'PM',
EEEE = dayOfWeekNames[date.getDay()],
EEE = EEEE.substr(0, 3),
dd = twoDigitPad(day),
M = month + 1,
MM = twoDigitPad(M),
MMMM = monthNames[month],
MMM = MMMM.substr(0, 3),
yyyy = year + "",
yy = yyyy.substr(2, 2)
;
// checks to see if month name will be used
patternStr = patternStr
.replace('hh', hh).replace('h', h)
.replace('HH', HH).replace('H', hour)
.replace('mm', mm).replace('m', minute)
.replace('ss', ss).replace('s', second)
.replace('S', miliseconds)
.replace('dd', dd).replace('d', day)
.replace('EEEE', EEEE).replace('EEE', EEE)
.replace('yyyy', yyyy)
.replace('yy', yy)
.replace('aaa', aaa);
if (patternStr.indexOf('MMM') > -1) {
patternStr = patternStr
.replace('MMMM', MMMM)
.replace('MMM', MMM);
}
else {
patternStr = patternStr
.replace('MM', MM)
.replace('M', M);
}
return patternStr;
}
function twoDigitPad(num) {
return num < 10 ? "0" + num : num;
}
console.log(formatDate(new Date()));
console.log(formatDate(new Date(), 'dd-MMM-yyyy')); //OP's request
console.log(formatDate(new Date(), 'EEEE, MMMM d, yyyy HH:mm:ss.S aaa'));
console.log(formatDate(new Date(), 'EEE, MMM d, yyyy HH:mm'));
console.log(formatDate(new Date(), 'yyyy-MM-dd HH:mm:ss.S'));
console.log(formatDate(new Date(), 'M/dd/yyyy h:mmaaa'));Thank you @Gerry for bringing up Luxon.
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On
You don't need any libraries. Just extract date components and construct the string. Here is how to get YYYY-MM-DD format. Also note the month index "January is 0, February is 1, and so on."
// @flow
type Components = {
day: number,
month: number,
year: number
}
export default class DateFormatter {
// YYYY-MM-DD
static YYYY_MM_DD = (date: Date): string => {
const components = DateFormatter.format(DateFormatter.components(date))
return `${components.year}-${components.month}-${components.day}`
}
static format = (components: Components) => {
return {
day: `${components.day}`.padStart(2, '0'),
month: `${components.month}`.padStart(2, '0'),
year: components.year
}
}
static components = (date: Date) => {
return {
day: date.getDate(),
month: date.getMonth() + 1,
year: date.getFullYear()
}
}
}
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A simple function that can return the date, the date + time, or just the time:
var myDate = dateFormatter("2019-01-24 11:33:24", "date-time");
// >> RETURNS "January 24, 2019 11:33:24"
var myDate2 = dateFormatter("2019-01-24 11:33:24", "date");
// >> RETURNS "January 24, 2019"
var myDate3 = dateFormatter("2019-01-24 11:33:24", "time");
// >> RETURNS "11:33:24"
function dateFormatter(strDate, format){
var theDate = new Date(strDate);
if (format=="time")
return getTimeFromDate(theDate);
else{
var dateOptions = {year:'numeric', month:'long', day:'numeric'};
var formattedDate = theDate.toLocaleDateString("en-US", + dateOptions);
if (format=="date")
return formattedDate;
return formattedDate + " " + getTimeFromDate(theDate);
}
}
function getTimeFromDate(theDate){
var sec = theDate.getSeconds();
if (sec<10)
sec = "0" + sec;
var min = theDate.getMinutes();
if (min<10)
min = "0" + min;
return theDate.getHours() + ':'+ min + ':' + sec;
}
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On
To obtain "10-Aug-2010", try:
var date = new Date('2010-08-10 00:00:00');
date = date.toLocaleDateString(undefined, {day:'2-digit'}) + '-' + date.toLocaleDateString(undefined, {month:'short'}) + '-' + date.toLocaleDateString(undefined, {year:'numeric'})
For browser support, see toLocaleDateString.
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This module can easily handle mostly every case there is. It is part of a bigger npm package, by Locutus, which includes a variety of functions, but it can be used totally independent of the package itself, just copy paste/ adapt a little if not working with npm (change from a module to just a function).
As a second parameter it accepts a timestamp, which can come from anywhere, such as Date.getTime().
Also, Locutus maintains a bigger datetime module, also inside the locutus package which will give a more object-oriented way to use it.
Here you can see other datetime functions, as modules, that proved to be very useful too.
You can find documentation on parameters and format strings here (note that the documentation site is a PHP site, but the locutus implementation follows exactly the same specifications).
Examples of the date Module
date('H:m:s \\m \\i\\s \\m\\o\\n\\t\\h', 1062402400)//'07:09:40 m is month'
date('F j, Y, g:i a', 1062462400)//'September 2, 2003, 12:26 am'
date('Y W o', 1062462400)//'2003 36 2003'
var $x = date('Y m d', (new Date()).getTime() / 1000) $x = $x + '' var $result = $x.length // 2009 01 09 10
date('W', 1104534000) //'52'
date('B t', 1104534000) //'999 31'
date('W U', 1293750000.82); // 2010-12-31 '52 1293750000'
date('W', 1293836400); // 2011-01-01 '52'
date('W Y-m-d', 1293974054); // 2011-01-02 '52 2011-01-02'
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On
Here is some ready-to-paste time/date formatting code that does not rely on any external modules/libraries or use jQuery or ES7 or anything. Unlike the code in some other answers, this code offers this combination of features:
- it takes a JavaScript Date object as input
- it can display date as local time zone or UTC
- it uses a simple formatting system "{year4} {month02} {second}" that is easy to read and understand even after you write the code, unlike the typical "%D %m %-" which always forces you back to the documentation
- the formatting system does not have any weird self-collisions like some ad-hoc "DD MM YYYY" systems
- you can run the test right here and try it
// format_date(date, pattern, utc)
// - date
// - a JavaScript Date object
// - use "new Date()" for current time
// - pattern
// - a string with embedded {codes} like
// "{year4}-{month02}-{day02}: {dayname3}"
// see format_date_funcs below for complete list
// - any other letters go through unchanged
// - utc
// - if true, shows date in UTC time "zone"
// - if false/omitted, shows date in local time zone
//
var month_names =
[
"January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December"
];
var day_of_week_names =
[
"Sunday", "Monday", "Tuesday",
"Wednesday", "Thursday", "Friday", "Saturday"
];
function space_pad2(num)
{
return num < 10 ? " " + num : num;
}
function zero_pad2(num)
{
return num < 10 ? "0" + num : num;
}
function space_pad3(num)
{
if (num < 10)
return " " + num;
else if (num < 100)
return " " + num;
else
return num;
}
function zero_pad3(num)
{
if (num < 10)
return "00" + num;
else if (num < 100)
return "0" + num;
else
return num;
}
var format_date_funcs =
{
// {year4} = '1902'
// {year02} = '02'
//
'year4': function(date, utc)
{
var year = utc ? date.getUTCFullYear() : date.getFullYear();
return year;
},
'year02': function(date, utc)
{
var year = utc ? date.getUTCFullYear() : date.getFullYear();
return year.toString().substr(2,2);
},
// {month} = '1' - '12'
// {month2} = ' 1' - '12' (space padded)
// {month02} = '01' - '12'
//
'month': function(date, utc)
{
var month = utc ? date.getUTCMonth() : date.getMonth(); // [0,11]
return month + 1;
},
'month2': function(date, utc)
{
var month = utc ? date.getUTCMonth() : date.getMonth(); // [0,11]
return space_pad2(month + 1);
},
'month02': function(date, utc)
{
var month = utc ? date.getUTCMonth() : date.getMonth(); // [0,11]
return zero_pad2(month + 1);
},
// {monthname} = 'January'
// {monthname3} = 'Jan'
//
'monthname': function(date, utc)
{
var month = utc ? date.getUTCMonth() : date.getMonth(); // [0,11]
return month_names[month];
},
'monthname3': function(date, utc)
{
var month = utc ? date.getUTCMonth() : date.getMonth(); // [0,11]
return month_names[month].substr(0, 3);
},
// {day} = '1' - '31'
// {day2} = ' 1' - '31' (space padded)
// {day02} = '01' - '31'
//
'day': function(date, utc)
{
var date = utc ? date.getUTCDate() : date.getDate(); // [1,31]
return date;
},
'day2': function(date, utc)
{
var date = utc ? date.getUTCDate() : date.getDate(); // [1,31]
return space_pad2(date);
},
'day02': function(date, utc)
{
var date = utc ? date.getUTCDate() : date.getDate(); // [1,31]
return zero_pad2(date);
},
// {dayname} = 'Tuesday'
// {dayname3} = 'Tue'
//
'dayname': function(date, utc)
{
var day = utc ? date.getUTCDay() : date.getDay(); // [0,6]
return day_of_week_names[day];
},
'dayname3': function(date, utc)
{
var day = utc ? date.getUTCDay() : date.getDay(); // [0,6]
return day_of_week_names[day].substr(0,3);
},
// {24hour} = '0' - '23'
// {24hour2} = ' 0' - '23' (space padded)
// {24hour02} = '00' - '23'
//
'24hour': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
return hour;
},
'24hour2': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
return space_pad2(hour);
},
'24hour02': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
return zero_pad2(hour);
},
// {12hour} = '1' - '12'
// {12hour2} = ' 1' - '12' (space padded)
// {12hour02} = '01' - '12'
// {ampm} = 'am' or 'pm'
// {AMPM} = 'AM' or 'PM'
//
'12hour': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
hour = hour % 12; // [0,11]
if (0 === hour) hour = 12;
return hour;
},
'12hour2': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
hour = hour % 12; // [0,11]
if (0 === hour) hour = 12;
return space_pad2(hour);
},
'12hour02': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
hour = hour % 12; // [0,11]
if (0 === hour) hour = 12;
return zero_pad2(hour);
},
'ampm': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
return (hour < 12 ? 'am' : 'pm');
},
'AMPM': function(date, utc)
{
var hour = utc ? date.getUTCHours() : date.getHours(); // [0,23]
return (hour < 12 ? 'AM' : 'PM');
},
// {minute} = '0' - '59'
// {minute2} = ' 0' - '59' (space padded)
// {minute02} = '00' - '59'
//
'minute': function(date, utc)
{
var minute = utc ? date.getUTCMinutes() : date.getMinutes(); // [0,59]
return minute;
},
'minute2': function(date, utc)
{
var minute = utc ? date.getUTCMinutes() : date.getMinutes(); // [0,59]
return space_pad2(minute);
},
'minute02': function(date, utc)
{
var minute = utc ? date.getUTCMinutes() : date.getMinutes(); // [0,59]
return zero_pad2(minute);
},
// {second} = '0' - '59'
// {second2} = ' 0' - '59' (space padded)
// {second02} = '00' - '59'
//
'second': function(date, utc)
{
var second = utc ? date.getUTCSeconds() : date.getSeconds(); // [0,59]
return second;
},
'second2': function(date, utc)
{
var second = utc ? date.getUTCSeconds() : date.getSeconds(); // [0,59]
return space_pad2(second);
},
'second02': function(date, utc)
{
var second = utc ? date.getUTCSeconds() : date.getSeconds(); // [0,59]
return zero_pad2(second);
},
// {msec} = '0' - '999'
// {msec3} = ' 0' - '999' (space padded)
// {msec03} = '000' - '999'
//
'msec': function(date, utc)
{
var msec =
utc ? date.getUTCMilliseconds() : date.getMilliseconds(); // [0,999]
return msec;
},
'msec3': function(date, utc)
{
var msec =
utc ? date.getUTCMilliseconds() : date.getMilliseconds(); // [0,999]
return space_pad3(msec);
},
'msec03': function(date, utc)
{
var msec =
utc ? date.getUTCMilliseconds() : date.getMilliseconds(); // [0,999]
return zero_pad3(msec);
},
// {open} = '{' (in case you actually want '{' in the output)
//
'open': function(date, utc)
{
return '{';
},
// {close} = '}' (in case you actually want '}' in the output)
//
'close': function(date, utc)
{
return '}';
},
};
function format_date(date, pattern, utc)
{
if (!pattern)
{
pattern = '{month}/{day}/{year4}';
}
var ret = '';
while (pattern.length > 0)
{
var s = pattern.indexOf('{');
var e = pattern.indexOf('}');
//console.log('s ' + s + ' e ' + e);
if (-1 !== s && -1 !== e && s < e)
{
// - there is a well-formed {foo} in range [s,e]
// - first we emit range [0,s) as literal
}
else
{
// - rest of string has no {} or has malformed }{ or { or }
// - just emit the rest of the string as literal and be done
s = pattern.length;
}
// emit range [0,s) as literal
if (s > 0)
{
ret += pattern.substr(0, s);
pattern = pattern.substr(s);
e -= s;
s = 0;
}
if (0 === pattern.length) break;
// emit range [s=0,e] by evaluating code
console.assert(0 === s); // position of {
console.assert(e > 0); // position of }
console.assert('{' === pattern.substr(s, 1));
console.assert('}' === pattern.substr(e, 1));
var code = pattern.substr(1,e-1);
var func = format_date_funcs[code];
console.assert(func);
ret += func(date, utc);
pattern = pattern.substr(e+1);
}
return ret;
}
if (1) // test format_date
{
var fmt = '[';
for (var func in format_date_funcs)
{
if (!format_date_funcs.hasOwnProperty(func)) continue;
fmt += '{' + func + '}/';
}
fmt += ']';
var now = new Date();
console.log(fmt);
console.log(format_date(now, fmt, false /* utc */));
console.log(format_date(now, fmt, true /* utc */));
}0
On
You should have a look at DayJs It's a remake of momentJs but modular architecture oriented so lighter.
Fast 2kB alternative to Moment.js with the same modern API
Day.js is a minimalist JavaScript library that parses, validates, manipulates, and displays dates and times for modern browsers with a largely Moment.js-compatible API. If you use Moment.js, you already know how to use Day.js.
var date = Date.now();
const formatedDate = dayjs(date).format("YYYY-MM-DD")
console.log(formatedDate);<script src="https://cdnjs.cloudflare.com/ajax/libs/dayjs/1.8.16/dayjs.min.js" crossorigin="anonymous"></script>0
On
As of 2019, it looks like you can get toLocaleDateString to return only certain parts and then you can join them as you wish:
var date = new Date();
console.log(date.toLocaleDateString("en-US", { day: 'numeric' })
+ "-"+ date.toLocaleDateString("en-US", { month: 'short' })
+ "-" + date.toLocaleDateString("en-US", { year: 'numeric' }) );
> 16-Nov-2019
console.log(date.toLocaleDateString("en-US", { month: 'long' })
+ " " + date.toLocaleDateString("en-US", { day: 'numeric' })
+ ", " + date.toLocaleDateString("en-US", { year: 'numeric' }) );
> November 16, 2019
For custom-delimited date formats, you have to pull out the date (or time) components from a
DateTimeFormatobject (which is part of the ECMAScript Internationalization API), and then manually create a string with the delimiters you want.To do this, you can use
DateTimeFormat#formatToParts. You could destructure the array, but that is not ideal, as the array output depends on the locale:Better would be to map a format array to resultant strings:
You can also pull out the parts of a
DateTimeFormatone-by-one usingDateTimeFormat#format, but note that when using this method, as of March 2020, there is a bug in the ECMAScript implementation when it comes to leading zeros on minutes and seconds (this bug is circumvented by the approach above).When working with dates and times, it is usually worth using a library (eg. luxon, date-fns,
moment.jsis not recommended for new projects) because of the many hidden complexities of the field.Note that the ECMAScript Internationalization API, used in the solutions above is not supported in IE10 (0.03% global browser market share in Feb 2020).