How do I format a Javascript Date object as a string? (Preferable format: 10-Aug-2010)
72 Answers
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)) // 1995-12-04
1 Comment
('0' + oneOrTwoDigitNumber).slice(-2). There is no need to use ('00' + oneOrTwoDigitNumber).slice(-2) because we know that oneOrTwoDigitNumber is at least one digit in length.The JavaScript Intl.DateTimeFormat method provides a convenient way to format dates.
Here is how the needed format can be constructed:
const date = new Date("2010-08-10");
let d=new Intl.DateTimeFormat('en-GB',{year:"numeric", month:"short",day:"2-digit"}).format(date).split(" ").join("-");
console.log(d);
Comments
It works same in Internet Explorer 11, Firefox, and Chrome (Chrome 80.x shows 12 hours format when en-UK selected).
const d = new Date('2010/08/05 23:45') // 26.3.2020
const dtfUK = new Intl.DateTimeFormat('UK', { year: 'numeric', month: '2-digit', day: '2-digit',
hour: '2-digit',minute: '2-digit', second: '2-digit' }); //
const dtfUS = new Intl.DateTimeFormat('en', { year: 'numeric', month: '2-digit', day: '2-digit',
hour: '2-digit',minute: '2-digit', second: '2-digit' }); //
console.log(dtfUS.format(d)); // 08/05/2010 11:45:00 PM
console.log(dtfUK.format(d)); // 05.08.2010 23:45:00
/* node.js:
08/05/2010, 11:45:00 PM
2010-08-05 23:45:00
*/
What about something more general?
var d = new Date('2010-08-10T10:34:56.789Z');
var str = d.toDateString() + // Tue Aug 10 2010
' ' + d.toTimeString().split(' ')[0] + // 12:34:56, GMT+0x00 (GMT+0x:00)
' ' + (d.getMonth() + 101) + // 108
' ' + d.getMilliseconds(); // 789
console.log(str); // Tue Aug 10 2010 12:34:56 108 789
console.log(// $1 Tue $2 Aug $3 11 $4 2020 $5 12 $6 34 $7 56 $8 108 $9 789
str.replace(/(\S{3}) (\S{3}) (\d{1,2}) (\d{4}) (\d{2}):(\d{2}):(\d{2}) 1(\d{2}) (\d{1,3})/, '$3-$2-$4 $5:$6.$9 ($1)')
); // 10-Aug-2010 12:34.789 (Tue)
/*
$1: Tue Week Day string
$2: Aug Month short text
$3: 11 Day
$4: 2010 Year
$5: 12 Hour
$6: 34 Minute
$7: 56 Seconds
$8: 08 Month
$9: 789 Milliseconds
*/
Or for example 1-line IIFE "library" ;-)
console.log(
(function (frm, d) { return [d.toDateString(), d.toTimeString().split(' ')[0], (d.getMonth() + 101), d.getMilliseconds()].join(' ').replace(/(\S{3}) (\S{3}) (\d{1,2}) (\d{4}) (\d{2}):(\d{2}):(\d{2}) 1(\d{2}) (\d{1,3})/, frm); })
('$4/$8/$3 $5:$6 ($1)', new Date())
);
You can remove useless parts and / or change indexes if you do not need them.
Comments
In order to format a date as e.g. 10-Aug-2010, you might want to use .toDateString() and ES6 array destructuring.
const formattedDate = new Date().toDateString()
// The above yields e.g. 'Mon Jan 06 2020'
const [, month, day, year] = formattedDate.split(' ')
const ddMmmYyyy = `${day}-${month}-${year}`
// or
const ddMmmYyyy = [day, month, year].join('-')
Comments
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}')
Comments
Simply you can do this:
let date = new Date().toLocaleDateString('en-us', {day: 'numeric'})
let month = new Date().toLocaleDateString('en-us', {month: 'long'})
let year = new Date().toLocaleDateString('en-us', {year: 'numeric'})
const FormattedDate = `${date}-${month}-${year}`
console.log(FormattedDate) // 26-March-2022
Comments
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.
1 Comment
Two pure JavaScript one-liners
In this answer I develop JD Smith's idea. I was able to shorten the JD Smith regexp.
let format= d=> d.toString().replace(/\w+ (\w+) (\d+) (\d+).*/,'$2-$1-$3');
console.log( format(Date()) );
Dave's is also based on JD Smith's idea, but he avoids regexps and give a very nice solution - I short his solution a little (by changing the split parameter) and opaque it in a wrapper.
let format= (d,a=d.toString().split` `)=> a[2]+"-"+a[1]+"-"+a[3];
console.log( format(Date()) );
Comments
Example: "2023-04-25 00:01:23"
var currentdate = new Date();
var startedAt = currentdate.getFullYear() + "-" +
(currentdate.getMonth() + 1).toString().padStart(2, '0') + "-" +
currentdate.getDate().toString().padStart(2, '0') + " " +
currentdate.getHours().toString().padStart(2, '0') + ":" +
currentdate.getMinutes().toString().padStart(2, '0') + ":" +
currentdate.getSeconds().toString().padStart(2, '0');
console.log(startedAt)
Comments
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
Comments
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());
}
Comments
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('-')})
Comments
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)
1 Comment
In my case, I have formatted the date from '01/07/2022' to '2022-07-01':
const formatDate = date => {
const d = new Date(date)
let month = (d.getMonth() + 1).toString()
let day = d.getDate().toString()
const year = d.getFullYear()
if (month.length < 2) {
month = '0' + month
}
if (day.length < 2) {
day = '0' + day
}
return [ year, month, day ].join('-')
}
console.log(formatDate('01/07/2022'))
Comments
Use "date-fns"
import { format } from "date-fns";
format(new Date(2024, 1, 24), "MM/dd/yyyy"); // '01/24/2024'
format(new Date(2024, 10, 6), 'MMM') //=> 'Nov'
format(new Date(2024, 10, 6), 'MMMM') //=> 'November'
1 Comment
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"
Comments
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
Comments
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'));
Comments
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()));
Comments
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;
}
}
Comments
This function was inspired by Java's SimpleDateFormat provides various formats such as:
dd-MMM-yyyy → 17-Jul-2018
yyyyMMdd'T'HHmmssXX → 20180717T120856+0900
yyyy-MM-dd'T'HH:mm:ssXXX → 2018-07-17T12:08:56+09:00
E, dd MMM yyyy HH:mm:ss Z → Tue, 17 Jul 2018 12:08:56 +0900
yyyy.MM.dd 'at' hh:mm:ss Z → 2018.07.17 at 12:08:56 +0900
EEE, MMM d, ''yy → Tue, Jul 17, '18
h:mm a → 12:08 PM
hh 'o''''clock' a, X → 12 o'clock PM, +09
Code example:
function formatWith(formatStr, date, opts) {
if (!date) {
date = new Date();
}
opts = opts || {};
let _days = opts.days;
if (!_days) {
_days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
}
let _months = opts.months;
if (!_months) {
_months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
}
const pad = (number, strDigits, isUnpad) => {
const strNum = number.toString();
if (!isUnpad && strNum.length > strDigits.length) {
return strNum;
} else {
return ('0000' + strNum).slice(-strDigits.length);
}
};
const timezone = (date, letter) => {
const chunk = [];
const offset = -date.getTimezoneOffset();
chunk.push(offset === 0 ? 'Z' : offset > 0 ? '+' : '-');//add Z or +,-
if (offset === 0) return chunk;
chunk.push(pad(Math.floor(offset / 60), '00'));//hour
if (letter === 'X') return chunk.join('');
if (letter === 'XXX') chunk.push(':');
chunk.push(pad((offset % 60), '00'));//min
return chunk.join('');
};
const ESCAPE_DELIM = '\0';
const escapeStack = [];
const escapedFmtStr = formatStr.replace(/'.*?'/g, m => {
escapeStack.push(m.replace(/'/g, ''));
return ESCAPE_DELIM + (escapeStack.length - 1) + ESCAPE_DELIM;
});
const formattedStr = escapedFmtStr
.replace(/y{4}|y{2}/g, m => pad(date.getFullYear(), m, true))
.replace(/M{3}/g, m => _months[date.getMonth()])
.replace(/M{1,2}/g, m => pad(date.getMonth() + 1, m))
.replace(/M{1,2}/g, m => pad(date.getMonth() + 1, m))
.replace(/d{1,2}/g, m => pad(date.getDate(), m))
.replace(/H{1,2}/g, m => pad(date.getHours(), m))
.replace(/h{1,2}/g, m => {
const hours = date.getHours();
return pad(hours === 0 ? 12 : hours > 12 ? hours - 12 : hours, m);
})
.replace(/a{1,2}/g, m => date.getHours() >= 12 ? 'PM' : 'AM')
.replace(/m{1,2}/g, m => pad(date.getMinutes(), m))
.replace(/s{1,2}/g, m => pad(date.getSeconds(), m))
.replace(/S{3}/g, m => pad(date.getMilliseconds(), m))
.replace(/[E]+/g, m => _days[date.getDay()])
.replace(/[Z]+/g, m => timezone(date, m))
.replace(/X{1,3}/g, m => timezone(date, m))
;
const unescapedStr = formattedStr.replace(/\0\d+\0/g, m => {
const unescaped = escapeStack.shift();
return unescaped.length > 0 ? unescaped : '\'';
});
return unescapedStr;
}
// Let's format with above function
const dateStr = '2018/07/17 12:08:56';
const date = new Date(dateStr);
const patterns = [
"dd-MMM-yyyy",
"yyyyMMdd'T'HHmmssXX",//ISO8601
"yyyy-MM-dd'T'HH:mm:ssXXX",//ISO8601EX
"E, dd MMM yyyy HH:mm:ss Z",//RFC1123(RFC822) like email
"yyyy.MM.dd 'at' hh:mm:ss Z",//hh shows 1-12
"EEE, MMM d, ''yy",
"h:mm a",
"hh 'o''''clock' a, X",
];
for (let pattern of patterns) {
console.log(`${pattern} → ${formatWith(pattern, date)}`);
}
And you can use this as a library
It is also released as an NPM module. You can use this on Node.js or use this from a CDN for a browser.
Node.js
const {SimpleDateFormat} = require('@riversun/simple-date-format');
In the browser
<script src="https://cdn.jsdelivr.net/npm/@riversun/[email protected]/dist/simple-date-format.js"></script>
Write the code as follows.
const date = new Date('2018/07/17 12:08:56');
const sdf = new SimpleDateFormat();
console.log(sdf.formatWith("yyyy-MM-dd'T'HH:mm:ssXXX", date));//to be "2018-07-17T12:08:56+09:00"
Source code here on GitHub:
Comments
Here is a script that does exactly what you want
https://github.com/UziTech/js-date-format
var d = new Date("2010-8-10");
document.write(d.format("DD-MMM-YYYY"));
1 Comment
You don't need any libraries. Just extract date components and construct the string. Here is how to get YYYY-MM-DD format. Also note the month index "January is 0, February is 1, and so on."
// @flow
type Components = {
day: number,
month: number,
year: number
}
export default class DateFormatter {
// YYYY-MM-DD
static YYYY_MM_DD = (date: Date): string => {
const components = DateFormatter.format(DateFormatter.components(date))
return `${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()
}
}
}
Comments
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;
}
Comments
function convert_month(i = 0, option = "num") { // i = index
var object_months = [
{ num: 01, short: "Jan", long: "January" },
{ num: 02, short: "Feb", long: "Februari" },
{ num: 03, short: "Mar", long: "March" },
{ num: 04, short: "Apr", long: "April" },
{ num: 05, short: "May", long: "May" },
{ num: 06, short: "Jun", long: "Juni" },
{ num: 07, short: "Jul", long: "July" },
{ num: 08, short: "Aug", long: "August" },
{ num: 09, short: "Sep", long: "September" },
{ num: 10, short: "Oct", long: "October" },
{ num: 11, short: "Nov", long: "November" },
{ num: 12, short: "Dec", long: "December" }
];
return object_months[i][option];
}
var d = new Date();
// https://stackoverflow.com/questions/1408289/how-can-i-do-string-interpolation-in-javascript
var num = `${d.getDate()}-${convert_month(d.getMonth())}-${d.getFullYear()}`;
var short = `${d.getDate()}-${convert_month(d.getMonth(), "short")}-${d.getFullYear()}`;
var long = `${d.getDate()}-${convert_month(d.getMonth(), "long")}-${d.getFullYear()}`;
document.querySelector("#num").innerHTML = num;
document.querySelector("#short").innerHTML = short;
document.querySelector("#long").innerHTML = long;
<p>Numeric : <span id="num"></span> (default)</p>
<p>Short : <span id="short"></span></p>
<p>Long : <span id="long"></span></p>
Comments
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'
Comments
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.
myDate.getDay()doesn't return the day of week, but the location of the weekday related to the week.myDate.getDate()returns the current weekday.Intl.DateTimeFormat. See this Stackblitz-project