How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
Javascriptnode.jsDateJavascript Problem Overview
Using NodeJS, I want to format a Date
into the following string format:
var ts_hms = new Date(UTC);
ts_hms.format("%Y-%m-%d %H:%M:%S");
How do I do that?
Javascript Solutions
Solution 1 - Javascript
If you're using Node.js, you're sure to have EcmaScript 5, and so Date has a toISOString
method. You're asking for a slight modification of ISO8601:
new Date().toISOString()
> '2012-11-04T14:51:06.157Z'
So just cut a few things out, and you're set:
new Date().toISOString().
replace(/T/, ' '). // replace T with a space
replace(/\..+/, '') // delete the dot and everything after
> '2012-11-04 14:55:45'
Or, in one line: new Date().toISOString().replace(/T/, ' ').replace(/\..+/, '')
ISO8601 is necessarily UTC (also indicated by the trailing Z on the first result), so you get UTC by default (always a good thing).
Solution 2 - Javascript
UPDATE 2021-10-06: Added Day.js and remove spurious edit by @ashleedawg
UPDATE 2021-04-07: Luxon added by @Tampa.
UPDATE 2021-02-28: It should now be noted that Moment.js is no longer being actively developed. It won't disappear in a hurry because it is embedded in so many other things. The website has some recommendations for alternatives and an explanation of why.
UPDATE 2017-03-29: Added date-fns, some notes on Moment and Datejs
UPDATE 2016-09-14: Added SugarJS which seems to have some excellent date/time functions.
OK, since no one has actually provided an actual answer, here is mine.
A library is certainly the best bet for handling dates and times in a standard way. There are lots of edge cases in date/time calculations so it is useful to be able to hand-off the development to a library.
Here is a list of the main Node compatible time formatting libraries:
- Day.js [added 2021-10-06] "Fast 2kB alternative to Moment.js with the same modern API"
- Luxon [added 2017-03-29, thanks to Tampa] "A powerful, modern, and friendly wrapper for JavaScript dates and times." - MomentJS rebuilt from the ground up with immutable types, chaining and much more.
- Moment.js [thanks to Mustafa] "A lightweight (4.3k) javascript date library for parsing, manipulating, and formatting dates" - Includes internationalization, calculations and relative date formats - Update 2017-03-29: Not quite so light-weight any more but still the most comprehensive solution, especially if you need timezone support. - Update 2021-02-28: No longer in active development.
- date-fns [added 2017-03-29, thanks to Fractalf] Small, fast, works with standard JS date objects. Great alternative to Moment if you don't need timezone support.
- SugarJS - A general helper library adding much needed features to JavaScripts built-in object types. Includes some excellent looking date/time capabilities.
- strftime - Just what it says, nice and simple
- dateutil - This is the one I used to use before MomentJS
- node-formatdate
- TimeTraveller - "Time Traveller provides a set of utility methods to deal with dates. From adding and subtracting, to formatting. Time Traveller only extends date objects that it creates, without polluting the global namespace."
- Tempus [thanks to Dan D] - UPDATE: this can also be used with Node and deployed with npm, see the docs
There are also non-Node libraries:
- Datejs [thanks to Peter Olson] - not packaged in npm or GitHub so not quite so easy to use with Node - not really recommended as not updated since 2007!
Solution 3 - Javascript
There's a library for conversion:
npm install dateformat
Then write your requirement:
var dateFormat = require('dateformat');
Then bind the value:
var day=dateFormat(new Date(), "yyyy-mm-dd h:MM:ss");
see dateformat
Solution 4 - Javascript
I have nothing against libraries in general. In this case a general purpose library seems overkill, unless other parts of the application process dates heavily.
Writing small utility functions such as this is also a useful exercise for both beginning and accomplished programmers alike and can be a learning experience for the novices amongst us.
function dateFormat (date, fstr, utc) {
utc = utc ? 'getUTC' : 'get';
return fstr.replace (/%[YmdHMS]/g, function (m) {
switch (m) {
case '%Y': return date[utc + 'FullYear'] (); // no leading zeros required
case '%m': m = 1 + date[utc + 'Month'] (); break;
case '%d': m = date[utc + 'Date'] (); break;
case '%H': m = date[utc + 'Hours'] (); break;
case '%M': m = date[utc + 'Minutes'] (); break;
case '%S': m = date[utc + 'Seconds'] (); break;
default: return m.slice (1); // unknown code, remove %
}
// add leading zero if required
return ('0' + m).slice (-2);
});
}
/* dateFormat (new Date (), "%Y-%m-%d %H:%M:%S", true) returns
"2012-05-18 05:37:21" */
Solution 5 - Javascript
Easily readable and customisable way to get a timestamp in your desired format, without use of any library:
function timestamp(){
function pad(n) {return n<10 ? "0"+n : n}
d=new Date()
dash="-"
colon=":"
return d.getFullYear()+dash+
pad(d.getMonth()+1)+dash+
pad(d.getDate())+" "+
pad(d.getHours())+colon+
pad(d.getMinutes())+colon+
pad(d.getSeconds())
}
(If you require time in UTC format, then just change the function calls. For example "getMonth" becomes "getUTCMonth")
Solution 6 - Javascript
Check the code below and the link to MDN
// var ts_hms = new Date(UTC);
// ts_hms.format("%Y-%m-%d %H:%M:%S")
// exact format
console.log(new Date().toISOString().replace('T', ' ').substring(0, 19))
// other formats
console.log(new Date().toUTCString())
console.log(new Date().toLocaleString('en-US'))
console.log(new Date().toString())
Solution 7 - Javascript
The javascript library sugar.js (http://sugarjs.com/) has functions to format dates
Example:
Date.create().format('{dd}/{MM}/{yyyy} {hh}:{mm}:{ss}.{fff}')
Solution 8 - Javascript
I am using dateformat at Nodejs and angularjs, so good
install
$ npm install dateformat
$ dateformat --help
demo
var dateFormat = require('dateformat');
var now = new Date();
// Basic usage
dateFormat(now, "dddd, mmmm dS, yyyy, h:MM:ss TT");
// Saturday, June 9th, 2007, 5:46:21 PM
// You can use one of several named masks
dateFormat(now, "isoDateTime");
// 2007-06-09T17:46:21
// ...Or add your own
dateFormat.masks.hammerTime = 'HH:MM! "Can\'t touch this!"';
dateFormat(now, "hammerTime");
// 17:46! Can't touch this!
// You can also provide the date as a string
dateFormat("Jun 9 2007", "fullDate");
// Saturday, June 9, 2007
...
Solution 9 - Javascript
Use the method provided in the Date object as follows:
var ts_hms = new Date();
console.log(
ts_hms.getFullYear() + '-' +
("0" + (ts_hms.getMonth() + 1)).slice(-2) + '-' +
("0" + (ts_hms.getDate())).slice(-2) + ' ' +
("0" + ts_hms.getHours()).slice(-2) + ':' +
("0" + ts_hms.getMinutes()).slice(-2) + ':' +
("0" + ts_hms.getSeconds()).slice(-2));
It looks really dirty, but it should work fine with JavaScript core methods
Solution 10 - Javascript
new Date(2015,1,3,15,30).toLocaleString()
//=> 2015-02-03 15:30:00
Solution 11 - Javascript
Alternative #6233....
Add the UTC offset to the local time then convert it to the desired format with the toLocaleDateString()
method of the Date
object:
// Using the current date/time
let now_local = new Date();
let now_utc = new Date();
// Adding the UTC offset to create the UTC date/time
now_utc.setMinutes(now_utc.getMinutes() + now_utc.getTimezoneOffset())
// Specify the format you want
let date_format = {};
date_format.year = 'numeric';
date_format.month = 'numeric';
date_format.day = '2-digit';
date_format.hour = 'numeric';
date_format.minute = 'numeric';
date_format.second = 'numeric';
// Printing the date/time in UTC then local format
console.log('Date in UTC: ', now_utc.toLocaleDateString('us-EN', date_format));
console.log('Date in LOC: ', now_local.toLocaleDateString('us-EN', date_format));
I'm creating a date object defaulting to the local time. I'm adding the UTC off-set to it. I'm creating a date-formatting object. I'm displaying the UTC date/time in the desired format:
Solution 12 - Javascript
For date formatting the most easy way is using moment lib. https://momentjs.com/
const moment = require('moment')
const current = moment().utc().format('Y-M-D H:M:S')
Solution 13 - Javascript
In reflect your time zone, you can use this
var datetime = new Date();
var dateString = new Date(
datetime.getTime() - datetime.getTimezoneOffset() * 60000
);
var curr_time = dateString.toISOString().replace("T", " ").substr(0, 19);
console.log(curr_time);
Solution 14 - Javascript
Use x-date
module which is one of sub-modules of x-class library ;
require('x-date') ;
//---
new Date().format('yyyy-mm-dd HH:MM:ss')
//'2016-07-17 18:12:37'
new Date().format('ddd , yyyy-mm-dd HH:MM:ss')
// 'Sun , 2016-07-17 18:12:51'
new Date().format('dddd , yyyy-mm-dd HH:MM:ss')
//'Sunday , 2016-07-17 18:12:58'
new Date().format('dddd ddSS of mmm , yy')
// 'Sunday 17thth +0300f Jul , 16'
new Date().format('dddd ddS mmm , yy')
//'Sunday 17th Jul , 16'
Solution 15 - Javascript
I needed a simple formatting library without the bells and whistles of locale and language support. So I modified
http://www.mattkruse.com/javascript/date/date.js
and used it. See https://github.com/adgang/atom-time/blob/master/lib/dateformat.js
The documentation is pretty clear.
Solution 16 - Javascript
new Date().toString("yyyyMMddHHmmss").
replace(/T/, ' ').
replace(/\..+/, '')
> with .toString(), This becomes in format > > replace(/T/, ' '). //replace T to ' ' 2017-01-15T... > > replace(/..+/, '') //for ...13:50:16.1271
example, see var date
and hour
:
var date="2017-01-15T13:50:16.1271".toString("yyyyMMddHHmmss").
replace(/T/, ' ').
replace(/\..+/, '');
var auxCopia=date.split(" ");
date=auxCopia[0];
var hour=auxCopia[1];
console.log(date);
console.log(hour);
Solution 17 - Javascript
appHelper.validateDates = function (start, end) {
var returnval = false;
var fd = new Date(start);
var fdms = fd.getTime();
var ed = new Date(end);
var edms = ed.getTime();
var cd = new Date();
var cdms = cd.getTime();
if (fdms >= edms) {
returnval = false;
console.log("step 1");
}
else if (cdms >= edms) {
returnval = false;
console.log("step 2");
}
else {
returnval = true;
console.log("step 3");
}
console.log("vall", returnval)
return returnval;
}
Solution 18 - Javascript
Here's a lightweight library simple-date-format I've written, works both on node.js and in the browser
Install
- Install with NPM
npm install @riversun/simple-date-format
or
- Load directly(for browser),
<script src="https://cdn.jsdelivr.net/npm/@riversun/simple-date-format/lib/simple-date-format.js"></script>
Load Library
- ES6
import SimpleDateFormat from "@riversun/simple-date-format";
- CommonJS (node.js)
const SimpleDateFormat = require('@riversun/simple-date-format');
Usage1
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"
Usage2
const date = new Date('2018/07/17 12:08:56');
const sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
console.log(sdf.format(date));//to be "2018-07-17T12:08:56+09:00"
Patterns for formatting
https://github.com/riversun/simple-date-format#pattern-of-the-date
Solution 19 - Javascript
import dateFormat from 'dateformat'; var ano = new Date()
<footer>
<span>{props.data.footer_desc} <a href={props.data.footer_link}>{props.data.footer_text_link}</a> {" "}
({day = dateFormat(props.data.updatedAt, "yyyy")})
</span>
</footer>
Solution 20 - Javascript
Here's a handy vanilla one-liner (adapted from this):
var timestamp =
new Date((dt = new Date()).getTime() - dt.getTimezoneOffset() * 60000)
.toISOString()
.replace(/(.*)T(.*)\..*/,'$1 $2')
console.log(timestamp)
Output: 2022-02-11 11:57:39
Solution 21 - Javascript
I think this actually answers your question.
It is so annoying working with date/time in javascript.
After a few gray hairs I figured out that is was actually pretty simple.
var date = new Date();
var year = date.getUTCFullYear();
var month = date.getUTCMonth();
var day = date.getUTCDate();
var hours = date.getUTCHours();
var min = date.getUTCMinutes();
var sec = date.getUTCSeconds();
var ampm = hours >= 12 ? 'pm' : 'am';
hours = ((hours + 11) % 12 + 1);//for 12 hour format
var str = month + "/" + day + "/" + year + " " + hours + ":" + min + ":" + sec + " " + ampm;
var now_utc = Date.UTC(str);