Current time formatting with Javascript
JavascriptDateTimeFormatJavascript Problem Overview
I want to get current time in a specific format with javascript.
With the function below and calling it will give me Fri Feb 01 2013 13:56:40 GMT+1300 (New Zealand Daylight Time) but I want to format it like Friday 2:00pm 1 Feb 2013
var d = new Date();
var x = document.getElementById("time");
x.innerHTML = d;
Of course, code above doesn't have any formatting logic but I have not come across with any "working" formatters yet.
Javascript Solutions
Solution 1 - Javascript
You may want to try
var d = new Date();
d.toLocaleString(); // -> "2/1/2013 7:37:08 AM"
d.toLocaleDateString(); // -> "2/1/2013"
d.toLocaleTimeString(); // -> "7:38:05 AM"
Solution 2 - Javascript
A JavaScript Date has several methods allowing you to extract its parts:
getFullYear() - Returns the 4-digit year
getMonth() - Returns a zero-based integer (0-11) representing the month of the year.
getDate() - Returns the day of the month (1-31).
getDay() - Returns the day of the week (0-6). 0 is Sunday, 6 is Saturday.
getHours() - Returns the hour of the day (0-23).
getMinutes() - Returns the minute (0-59).
getSeconds() - Returns the second (0-59).
getMilliseconds() - Returns the milliseconds (0-999).
getTimezoneOffset() - Returns the number of minutes between the machine local time and UTC.
There are no built-in methods allowing you to get localized strings like "Friday", "February", or "PM". You have to code that yourself. To get the string you want, you at least need to store string representations of days and months:
var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
var days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
Then, put it together using the methods above:
var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
var days = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
var d = new Date();
var day = days[d.getDay()];
var hr = d.getHours();
var min = d.getMinutes();
if (min < 10) {
min = "0" + min;
}
var ampm = "am";
if( hr > 12 ) {
hr -= 12;
ampm = "pm";
}
var date = d.getDate();
var month = months[d.getMonth()];
var year = d.getFullYear();
var x = document.getElementById("time");
x.innerHTML = day + " " + hr + ":" + min + ampm + " " + date + " " + month + " " + year;
<span id="time"></span>
I have a date format function I like to include in my standard library. It takes a format string parameter that defines the desired output. The format strings are loosely based on .Net custom Date and Time format strings. For the format you specified the following format string would work: "dddd h:mmtt d MMM yyyy".
var d = new Date();
var x = document.getElementById("time");
x.innerHTML = formatDate(d, "dddd h:mmtt d MMM yyyy");
Demo: jsfiddle.net/BNkkB/1
Here is my full date formatting function:
function formatDate(date, format, utc) {
var MMMM = ["\x00", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
var MMM = ["\x01", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
var dddd = ["\x02", "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
var ddd = ["\x03", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
function ii(i, len) {
var s = i + "";
len = len || 2;
while (s.length < len) s = "0" + s;
return s;
}
var y = utc ? date.getUTCFullYear() : date.getFullYear();
format = format.replace(/(^|[^\\])yyyy+/g, "$1" + y);
format = format.replace(/(^|[^\\])yy/g, "$1" + y.toString().substr(2, 2));
format = format.replace(/(^|[^\\])y/g, "$1" + y);
var M = (utc ? date.getUTCMonth() : date.getMonth()) + 1;
format = format.replace(/(^|[^\\])MMMM+/g, "$1" + MMMM[0]);
format = format.replace(/(^|[^\\])MMM/g, "$1" + MMM[0]);
format = format.replace(/(^|[^\\])MM/g, "$1" + ii(M));
format = format.replace(/(^|[^\\])M/g, "$1" + M);
var d = utc ? date.getUTCDate() : date.getDate();
format = format.replace(/(^|[^\\])dddd+/g, "$1" + dddd[0]);
format = format.replace(/(^|[^\\])ddd/g, "$1" + ddd[0]);
format = format.replace(/(^|[^\\])dd/g, "$1" + ii(d));
format = format.replace(/(^|[^\\])d/g, "$1" + d);
var H = utc ? date.getUTCHours() : date.getHours();
format = format.replace(/(^|[^\\])HH+/g, "$1" + ii(H));
format = format.replace(/(^|[^\\])H/g, "$1" + H);
var h = H > 12 ? H - 12 : H == 0 ? 12 : H;
format = format.replace(/(^|[^\\])hh+/g, "$1" + ii(h));
format = format.replace(/(^|[^\\])h/g, "$1" + h);
var m = utc ? date.getUTCMinutes() : date.getMinutes();
format = format.replace(/(^|[^\\])mm+/g, "$1" + ii(m));
format = format.replace(/(^|[^\\])m/g, "$1" + m);
var s = utc ? date.getUTCSeconds() : date.getSeconds();
format = format.replace(/(^|[^\\])ss+/g, "$1" + ii(s));
format = format.replace(/(^|[^\\])s/g, "$1" + s);
var f = utc ? date.getUTCMilliseconds() : date.getMilliseconds();
format = format.replace(/(^|[^\\])fff+/g, "$1" + ii(f, 3));
f = Math.round(f / 10);
format = format.replace(/(^|[^\\])ff/g, "$1" + ii(f));
f = Math.round(f / 10);
format = format.replace(/(^|[^\\])f/g, "$1" + f);
var T = H < 12 ? "AM" : "PM";
format = format.replace(/(^|[^\\])TT+/g, "$1" + T);
format = format.replace(/(^|[^\\])T/g, "$1" + T.charAt(0));
var t = T.toLowerCase();
format = format.replace(/(^|[^\\])tt+/g, "$1" + t);
format = format.replace(/(^|[^\\])t/g, "$1" + t.charAt(0));
var tz = -date.getTimezoneOffset();
var K = utc || !tz ? "Z" : tz > 0 ? "+" : "-";
if (!utc) {
tz = Math.abs(tz);
var tzHrs = Math.floor(tz / 60);
var tzMin = tz % 60;
K += ii(tzHrs) + ":" + ii(tzMin);
}
format = format.replace(/(^|[^\\])K/g, "$1" + K);
var day = (utc ? date.getUTCDay() : date.getDay()) + 1;
format = format.replace(new RegExp(dddd[0], "g"), dddd[day]);
format = format.replace(new RegExp(ddd[0], "g"), ddd[day]);
format = format.replace(new RegExp(MMMM[0], "g"), MMMM[M]);
format = format.replace(new RegExp(MMM[0], "g"), MMM[M]);
format = format.replace(/\\(.)/g, "$1");
return format;
};
Solution 3 - Javascript
2017 update: use toLocaleDateString and toLocaleTimeString to format dates and times. The first parameter passed to these methods is a locale value, such as en-us. The second parameter, where present, specifies formatting options, such as the long form for the weekday.
let date = new Date();
let options = {
weekday: "long", year: "numeric", month: "short",
day: "numeric", hour: "2-digit", minute: "2-digit"
};
console.log(date.toLocaleTimeString("en-us", options));
>Output : Wednesday, Oct 25, 2017, 8:19 PM
Please refer below link for more details.
Solution 4 - Javascript
You can use my port of strftime:
/* Port of strftime(). Compatibility notes:
*
* %c - formatted string is slightly different
* %D - not implemented (use "%m/%d/%y" or "%d/%m/%y")
* %e - space is not added
* %E - not implemented
* %h - not implemented (use "%b")
* %k - space is not added
* %n - not implemented (use "\n")
* %O - not implemented
* %r - not implemented (use "%I:%M:%S %p")
* %R - not implemented (use "%H:%M")
* %t - not implemented (use "\t")
* %T - not implemented (use "%H:%M:%S")
* %U - not implemented
* %W - not implemented
* %+ - not implemented
* %% - not implemented (use "%")
*
* strftime() reference:
* http://man7.org/linux/man-pages/man3/strftime.3.html
*
* Day of year (%j) code based on Joe Orost's answer:
* http://stackoverflow.com/questions/8619879/javascript-calculate-the-day-of-the-year-1-366
*
* Week number (%V) code based on Taco van den Broek's prototype:
* http://techblog.procurios.nl/k/news/view/33796/14863/calculate-iso-8601-week-and-year-in-javascript.html
*/
function strftime(sFormat, date) {
if (!(date instanceof Date)) date = new Date();
var nDay = date.getDay(),
nDate = date.getDate(),
nMonth = date.getMonth(),
nYear = date.getFullYear(),
nHour = date.getHours(),
aDays = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
aMonths = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
aDayCount = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334],
isLeapYear = function() {
if ((nYear&3)!==0) return false;
return nYear%100!==0 || nYear%400===0;
},
getThursday = function() {
var target = new Date(date);
target.setDate(nDate - ((nDay+6)%7) + 3);
return target;
},
zeroPad = function(nNum, nPad) {
return ('' + (Math.pow(10, nPad) + nNum)).slice(1);
};
return sFormat.replace(/%[a-z]/gi, function(sMatch) {
return {
'%a': aDays[nDay].slice(0,3),
'%A': aDays[nDay],
'%b': aMonths[nMonth].slice(0,3),
'%B': aMonths[nMonth],
'%c': date.toUTCString(),
'%C': Math.floor(nYear/100),
'%d': zeroPad(nDate, 2),
'%e': nDate,
'%F': date.toISOString().slice(0,10),
'%G': getThursday().getFullYear(),
'%g': ('' + getThursday().getFullYear()).slice(2),
'%H': zeroPad(nHour, 2),
'%I': zeroPad((nHour+11)%12 + 1, 2),
'%j': zeroPad(aDayCount[nMonth] + nDate + ((nMonth>1 && isLeapYear()) ? 1 : 0), 3),
'%k': '' + nHour,
'%l': (nHour+11)%12 + 1,
'%m': zeroPad(nMonth + 1, 2),
'%M': zeroPad(date.getMinutes(), 2),
'%p': (nHour<12) ? 'AM' : 'PM',
'%P': (nHour<12) ? 'am' : 'pm',
'%s': Math.round(date.getTime()/1000),
'%S': zeroPad(date.getSeconds(), 2),
'%u': nDay || 7,
'%V': (function() {
var target = getThursday(),
n1stThu = target.valueOf();
target.setMonth(0, 1);
var nJan1 = target.getDay();
if (nJan1!==4) target.setMonth(0, 1 + ((4-nJan1)+7)%7);
return zeroPad(1 + Math.ceil((n1stThu-target)/604800000), 2);
})(),
'%w': '' + nDay,
'%x': date.toLocaleDateString(),
'%X': date.toLocaleTimeString(),
'%y': ('' + nYear).slice(2),
'%Y': nYear,
'%z': date.toTimeString().replace(/.+GMT([+-]\d+).+/, '$1'),
'%Z': date.toTimeString().replace(/.+\((.+?)\)$/, '$1')
}[sMatch] || sMatch;
});
}
Sample usage:
// Returns "Thursday 4:45pm 15 Sep 2016"
strftime('%A %l:%M%P %e %b %Y');
// You can optionally pass it a Date object
// Returns "Friday 2:00pm 1 Feb 2013"
strftime('%A %l:%M%P %e %b %Y', new Date('Feb 1, 2013 2:00 PM'));
The latest code is available here: https://github.com/thdoan/strftime
Solution 5 - Javascript
Look at the internals of the Date class and you will see that you can extract all the bits (date, month, year, hour, etc).
http://www.w3schools.com/jsref/jsref_obj_date.asp
For something like Fri 23:00 1 Feb 2013 the code is like:
date = new Date();
weekdayNames = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
var dateString = weekdayNames[date.getDay()] + " "
+ date.getHours() + ":" + ("00" + date.getMinutes()).slice(-2) + " "
+ date.getDate() + " " + monthNames[date.getMonth()] + " " + date.getFullYear();
console.log(dateString);
**** Modified 2019-05-29 to keep 3 downvoters happy
Solution 6 - Javascript
There are many great libraries out there, for those interested
There really shouldn't be a need these days to invent your own formatting specifiers.
Solution 7 - Javascript
Using Moment.
I can't recommend the use of Moment enough. If you are able to use third-party libraries, I highly recommend doing so. Beyond just formatting, it deals with timezones, parsing, durations and time travel extremely well and will pay dividends in simplicity and time (at the small expense of size, abstraction and performance).
Usage
You wanted something that looked like this:
> Friday 2:00pm 1 Feb 2013
Well, with Moment all you need you to do is this:
import Moment from "moment";
Moment().format( "dddd h:mma D MMM YYYY" ); //=> "Wednesday 9:20am 9 Dec 2020"
And if you wanted to match that exact date and time, all you would need to do is this:
import Moment from "moment";
Moment( "2013-2-1 14:00:00" ).format( "dddd h:mma D MMM YYYY" ) ); //=> "Friday 2:00pm 1 Feb 2013"
There's a myriad of other formatting options that can be found here.
Install
Go to their home page to see more detailed instructions, but if you're using npm or yarn it's as simple as:
npm install moment --save
or
yarn add moment
Solution 8 - Javascript
d = Date.now();
d = new Date(d);
d = (d.getMonth()+1)+'/'+d.getDate()+'/'+d.getFullYear()+' '+(d.getHours() > 12 ? d.getHours() - 12 : d.getHours())+':'+d.getMinutes()+' '+(d.getHours() >= 12 ? "PM" : "AM");
console.log(d);
Solution 9 - Javascript
Only time
const getTime = ()=>{
const d = new Date();
const dd = [d.getHours(), d.getMinutes(), d.getSeconds()].map((a)=>(a < 10 ? '0' + a : a));
return dd.join(':');
};
Solution 10 - Javascript
For this true mysql style use this function below: 2019/02/28 15:33:12
- If you click the
- 'Run code snippet' button below
- It will show your an simple realtime digital clock example The demo will appear below the code snippet.
function getDateTime() {
var now = new Date();
var year = now.getFullYear();
var month = now.getMonth()+1;
var day = now.getDate();
var hour = now.getHours();
var minute = now.getMinutes();
var second = now.getSeconds();
if(month.toString().length == 1) {
month = '0'+month;
}
if(day.toString().length == 1) {
day = '0'+day;
}
if(hour.toString().length == 1) {
hour = '0'+hour;
}
if(minute.toString().length == 1) {
minute = '0'+minute;
}
if(second.toString().length == 1) {
second = '0'+second;
}
var dateTime = year+'/'+month+'/'+day+' '+hour+':'+minute+':'+second;
return dateTime;
}
// example usage: realtime clock
setInterval(function(){
currentTime = getDateTime();
document.getElementById("digital-clock").innerHTML = currentTime;
}, 1000);
<div id="digital-clock"></div>
Solution 11 - Javascript
2.39KB minified. One file. https://github.com/rhroyston/clock-js
Current Time is
var str = clock.month;
var m = str.charAt(0).toUpperCase() + str.slice(1,3); //gets you abbreviated month
clock.weekday + ' ' + clock.time + ' ' + clock.day + ' ' + m + ' ' + clock.year; //"tuesday 5:50 PM 3 May 2016"
Solution 12 - Javascript
function formatTime(date){
d = new Date(date);
var h=d.getHours(),m=d.getMinutes(),l="AM";
if(h > 12){
h = h - 12;
}
if(h < 10){
h = '0'+h;
}
if(m < 10){
m = '0'+m;
}
if(d.getHours() >= 12){
l="PM"
}else{
l="AM"
}
return h+':'+m+' '+l;
}
Usage & result:
var formattedTime=formatTime(new Date('2020 15:00'));
// Output: "03:00 PM"
Solution 13 - Javascript
To work with the base Date class you can look at MDN for its methods (instead of W3Schools due to this reason). There you can find a good description about every method useful to access each single date/time component and informations relative to whether a method is deprecated or not.
Otherwise you can look at Moment.js that is a good library to use for date and time processing. You can use it to manipulate date and time (such as parsing, formatting, i18n, etc.).
Solution 14 - Javascript
function startTime() {
var today = new Date(),
h = checkTime(((today.getHours() + 11) % 12 + 1)),
m = checkTime(today.getMinutes()),
s = checkTime(today.getSeconds());
document.getElementById('demo').innerHTML = h + ":" + m + ":" + s;
t = setTimeout(function () {
startTime()
}, 500);
}
startTime();
})();
05:12:00
Solution 15 - Javascript
let date = new Date();
let time = date.format("hh:ss")