What is the best way to format a JavaScript datetime to show in 12 hour AM/PM style?

Question

What is the best way to format a JavaScript datetime to show in 12 hour AM/PM style?

What is the best way to format a JavaScript datetime object in the 12-hour clock (AM/PM) format?

Answer 1

Answer №1

function displayTime(date) {
  var hours = date.getHours();
  var minutes = date.getMinutes();
  var ampm = hours >= 12 ? 'pm' : 'am';
  hours = hours % 12;
  hours = hours ? hours : 12; // if hour is 0, make it 12
  minutes = minutes < 10 ? '0'+minutes : minutes;
  var formattedTime = hours + ':' + minutes + ' ' + ampm;
  return formattedTime;
}

console.log(displayTime(new Date));

Answer 2

function displayTime(date) {
  var hours = date.getHours();
  var minutes = date.getMinutes();
  var ampm = hours >= 12 ? 'pm' : 'am';
  hours = hours % 12;
  hours = hours ? hours : 12; // if hour is 0, make it 12
  minutes = minutes < 10 ? '0'+minutes : minutes;
  var formattedTime = hours + ':' + minutes + ' ' + ampm;
  return formattedTime;
}

console.log(displayTime(new Date));

Answer 3

Answer №2

If you only need to display the hours...

let currentTime = new Date();
console.log(
  currentTime.toLocaleString('en-US', { hour: 'numeric', hour12: true })
);

Result : 7 AM

If you want to include the minutes as well...

let currentTime = new Date();
console.log(
  currentTime.toLocaleString('en-US', { hour: 'numeric', minute: 'numeric', hour12: true })
);

Result : 7:23 AM

Answer 4

If you only need to display the hours...

let currentTime = new Date();
console.log(
  currentTime.toLocaleString('en-US', { hour: 'numeric', hour12: true })
);

Result : 7 AM

If you want to include the minutes as well...

let currentTime = new Date();
console.log(
  currentTime.toLocaleString('en-US', { hour: 'numeric', minute: 'numeric', hour12: true })
);

Result : 7:23 AM

Answer 5

Answer №3

In case you're not interested in displaying the am/pm, I came across this neat and succinct solution:

let currentDate = new Date();
let hours = (currentDate.getHours() % 12) || 12;  // Displaying time in 12-hour format instead of 24-hour.

Credit goes to @bbrame for this approach.

Answer 6

In case you're not interested in displaying the am/pm, I came across this neat and succinct solution:

let currentDate = new Date();
let hours = (currentDate.getHours() % 12) || 12;  // Displaying time in 12-hour format instead of 24-hour.

Credit goes to @bbrame for this approach.

Answer 7

Answer №4

Here is a method using regular expressions:

console.log(new Date('7/10/2013 20:12:34').toLocaleTimeString().replace(/([\d]+:[\d]{2})(:[\d]{2})(.*)/, "$1$3"))
console.log(new Date('7/10/2013 01:12:34').toLocaleTimeString().replace(/([\d]+:[\d]{2})(:[\d]{2})(.*)/, "$1$3"))

This technique creates 3 different groups to match the time elements:

([\d]+:[\d]{2}) - Hour:Minute
(:[\d]{2}) - Seconds
(.*) - the space and period (period refers to AM/PM)

Afterwards, it only displays the 1st and 3rd matching groups.

NOTE: Keep in mind that toLocaleTimeString() may produce varied results depending on region or location settings.

Answer 8

Here is a method using regular expressions:

console.log(new Date('7/10/2013 20:12:34').toLocaleTimeString().replace(/([\d]+:[\d]{2})(:[\d]{2})(.*)/, "$1$3"))
console.log(new Date('7/10/2013 01:12:34').toLocaleTimeString().replace(/([\d]+:[\d]{2})(:[\d]{2})(.*)/, "$1$3"))

This technique creates 3 different groups to match the time elements:

([\d]+:[\d]{2}) - Hour:Minute
(:[\d]{2}) - Seconds
(.*) - the space and period (period refers to AM/PM)

Afterwards, it only displays the 1st and 3rd matching groups.

NOTE: Keep in mind that toLocaleTimeString() may produce varied results depending on region or location settings.

Answer 9

Answer №5

To implement 12-hour format in modern browsers, utilize the Intl.DateTimeFormat method along with specific options:

    let currentTime = new Date();

    new Intl.DateTimeFormat('default',
        {
            hour12: true,
            hour: 'numeric',
            minute: 'numeric'
        }).format(currentTime);

    // Output example: 6:30 AM

By using the 'default' parameter, the browser's default locale settings will be respected when additional options are added while still ensuring a 12-hour time format output.

Answer 10

To implement 12-hour format in modern browsers, utilize the Intl.DateTimeFormat method along with specific options:

    let currentTime = new Date();

    new Intl.DateTimeFormat('default',
        {
            hour12: true,
            hour: 'numeric',
            minute: 'numeric'
        }).format(currentTime);

    // Output example: 6:30 AM

By using the 'default' parameter, the browser's default locale settings will be respected when additional options are added while still ensuring a 12-hour time format output.

Answer 11

Answer №6

From my understanding, the simplest way to achieve this without extensions or complicated coding is as follows:

     date.toLocaleString([], { hour12: true});

Check out Javascript AM/PM Format here

<!DOCTYPE html>
<html>
<body>
    <p>Click the button to display the date and time as a string.</p>

    <button onclick="myFunction()">Try it</button>
    <button onclick="fullDateTime()">Try it2</button>
    <p id="demo"></p>
    <p id="demo2"></p>
    <script>
        function myFunction() {
            var d = new Date();
            var n = d.toLocaleString([], { hour: '2-digit', minute: '2-digit' });
            document.getElementById("demo").innerHTML = n;
        }
        function fullDateTime() {
            var d = new Date();          
            var n = d.toLocaleString([], { hour12: true});
            document.getElementById("demo2").innerHTML = n;
        }
    </script>
</body>
</html>

This information was discovered while researching the topic.

Learn more about using .toLocaleTimeString() without displaying seconds on Stack Overflow

Answer 12

From my understanding, the simplest way to achieve this without extensions or complicated coding is as follows:

     date.toLocaleString([], { hour12: true});

Check out Javascript AM/PM Format here

<!DOCTYPE html>
<html>
<body>
    <p>Click the button to display the date and time as a string.</p>

    <button onclick="myFunction()">Try it</button>
    <button onclick="fullDateTime()">Try it2</button>
    <p id="demo"></p>
    <p id="demo2"></p>
    <script>
        function myFunction() {
            var d = new Date();
            var n = d.toLocaleString([], { hour: '2-digit', minute: '2-digit' });
            document.getElementById("demo").innerHTML = n;
        }
        function fullDateTime() {
            var d = new Date();          
            var n = d.toLocaleString([], { hour12: true});
            document.getElementById("demo2").innerHTML = n;
        }
    </script>
</body>
</html>

This information was discovered while researching the topic.

Learn more about using .toLocaleTimeString() without displaying seconds on Stack Overflow

Answer 13

Answer №7

Utilize the power of Moment.js to achieve this

Refer to the following JavaScript code snippets when working with moment.js

H, HH       Represents 24-hour time format
h, or hh    Represents 12-hour time format (use in combination with a or A)

The format() method allows you to display the date in a specific format.

moment(new Date()).format("YYYY-MM-DD HH:mm"); // Displays time in 24-hour clock
moment(new Date()).format("YYYY-MM-DD hh:mm A"); // Displays time in 12-hour clock (AM/PM)
moment(new Date()).format("YYYY-MM-DD hh:mm a"); // Displays time in 12-hour clock (am/pm)

Answer 14

Utilize the power of Moment.js to achieve this

Refer to the following JavaScript code snippets when working with moment.js

H, HH       Represents 24-hour time format
h, or hh    Represents 12-hour time format (use in combination with a or A)

The format() method allows you to display the date in a specific format.

moment(new Date()).format("YYYY-MM-DD HH:mm"); // Displays time in 24-hour clock
moment(new Date()).format("YYYY-MM-DD hh:mm A"); // Displays time in 12-hour clock (AM/PM)
moment(new Date()).format("YYYY-MM-DD hh:mm a"); // Displays time in 12-hour clock (am/pm)

Answer 15

Answer №8

If you need to work with dates and times, I recommend using moment js.

Check out the documentation for more information

console.log(moment().format('hh:mm a'));

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>

Answer 16

If you need to work with dates and times, I recommend using moment js.

Check out the documentation for more information

console.log(moment().format('hh:mm a'));

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>

Answer 17

Answer №9

Enhanced for better compression

const formatTime = (date) => {
  let hrs = date.getHours();
  let mins = date.getMinutes();    
  const meridiem = hrs >= 12 ? 'pm' : 'am';

  hrs %= 12;
  hrs = hrs || 12;    
  mins = mins < 10 ? `0${mins}` : mins;

  const finalTime = `${hrs}:${mins} ${meridiem}`;

  return finalTime;
};

console.log(formatTime(new Date()));

Answer 18

Enhanced for better compression

const formatTime = (date) => {
  let hrs = date.getHours();
  let mins = date.getMinutes();    
  const meridiem = hrs >= 12 ? 'pm' : 'am';

  hrs %= 12;
  hrs = hrs || 12;    
  mins = mins < 10 ? `0${mins}` : mins;

  const finalTime = `${hrs}:${mins} ${meridiem}`;

  return finalTime;
};

console.log(formatTime(new Date()));

Answer 19

Answer №10

try using

dateObj.toLocaleString([locales[, options]])

Solution 1 - Utilizing locales

let currentDate = new Date();
console.log(currentDate.toLocaleString('en-US'));

Solution 2 - Employing options

let formattingOptions = { hour12: true };
console.log(currentDate.toLocaleString('en-GB', formattingOptions));

Reminder: compatibility across all browsers except for Safari currently

Answer 20

try using

dateObj.toLocaleString([locales[, options]])

Solution 1 - Utilizing locales

let currentDate = new Date();
console.log(currentDate.toLocaleString('en-US'));

Solution 2 - Employing options

let formattingOptions = { hour12: true };
console.log(currentDate.toLocaleString('en-GB', formattingOptions));

Reminder: compatibility across all browsers except for Safari currently

Answer 21

Answer №11

Simple Regular Expression for American English:

let currentTime = new Date().toLocaleTimeString().replace(/:\d+ /, ' '); // current time in 12-hour format

Answer 22

Simple Regular Expression for American English:

let currentTime = new Date().toLocaleTimeString().replace(/:\d+ /, ' '); // current time in 12-hour format

Answer 23

Answer №12

Check out the solution provided below

let now = new Date();
let period = (now.getHours() < 12) ? "AM" : "PM";
let hourOfDay = (now.getHours() < 12) ? now.getHours() : now.getHours() - 12;
return   now.getDate() + ' / ' + now.getMonth() + ' / ' + now.getFullYear() + ' ' + hourOfDay + ':' + now.getMinutes() + ' ' + period;

Answer 24

Check out the solution provided below

let now = new Date();
let period = (now.getHours() < 12) ? "AM" : "PM";
let hourOfDay = (now.getHours() < 12) ? now.getHours() : now.getHours() - 12;
return   now.getDate() + ' / ' + now.getMonth() + ' / ' + now.getFullYear() + ' ' + hourOfDay + ':' + now.getMinutes() + ' ' + period;

Answer 25

Answer №13

It will display the time in the following format:

09:56 AM

If the hour is less than 10, a zero will be added at the beginning.

This code snippet uses ES6 syntax to achieve this functionality.

const getTimeAMPMFormat = (date) => {
  let hours = date.getHours();
  let minutes = date.getMinutes();
  const ampm = hours >= 12 ? 'PM' : 'AM';
  hours = hours % 12;
  hours = hours ? hours : 12; // the hour '0' should be '12'
  hours = hours < 10 ? '0' + hours : hours;
  // add zero at the start if hour is less than 10
  minutes = minutes < 10 ? '0' + minutes : minutes;
  return hours + ':' + minutes + ' ' + ampm;
};
console.log(getTimeAMPMFormat(new Date)); // 09:59 AM

Answer 26

It will display the time in the following format:

09:56 AM

If the hour is less than 10, a zero will be added at the beginning.

This code snippet uses ES6 syntax to achieve this functionality.

const getTimeAMPMFormat = (date) => {
  let hours = date.getHours();
  let minutes = date.getMinutes();
  const ampm = hours >= 12 ? 'PM' : 'AM';
  hours = hours % 12;
  hours = hours ? hours : 12; // the hour '0' should be '12'
  hours = hours < 10 ? '0' + hours : hours;
  // add zero at the start if hour is less than 10
  minutes = minutes < 10 ? '0' + minutes : minutes;
  return hours + ':' + minutes + ' ' + ampm;
};
console.log(getTimeAMPMFormat(new Date)); // 09:59 AM

Answer 27

Answer №14

I stumbled upon a helpful resource here that seems to be working well.

var date_format = '12'; /* FORMAT CAN BE 12 hour (12) OR 24 hour (24)*/
 
 
var d       = new Date();
var hour    = d.getHours();  /* Returns the hour (from 0-23) */
var minutes     = d.getMinutes();  /* Returns the minutes (from 0-59) */
var result  = hour;
var ext     = '';
 
if(date_format == '12'){
    if(hour > 12){
        ext = 'PM';
        hour = (hour - 12);
        result = hour;

        if(hour < 10){
            result = "0" + hour;
        }else if(hour == 12){
            hour = "00";
            ext = 'AM';
        }
    }
    else if(hour < 12){
        result = ((hour < 10) ? "0" + hour : hour);
        ext = 'AM';
    }else if(hour == 12){
        ext = 'PM';
    }
}
 
if(minutes < 10){
    minutes = "0" + minutes; 
}
 
result = result + ":" + minutes + ' ' + ext; 
 
console.log(result);

Check out a plunker example here

Answer 28

I stumbled upon a helpful resource here that seems to be working well.

var date_format = '12'; /* FORMAT CAN BE 12 hour (12) OR 24 hour (24)*/
 
 
var d       = new Date();
var hour    = d.getHours();  /* Returns the hour (from 0-23) */
var minutes     = d.getMinutes();  /* Returns the minutes (from 0-59) */
var result  = hour;
var ext     = '';
 
if(date_format == '12'){
    if(hour > 12){
        ext = 'PM';
        hour = (hour - 12);
        result = hour;

        if(hour < 10){
            result = "0" + hour;
        }else if(hour == 12){
            hour = "00";
            ext = 'AM';
        }
    }
    else if(hour < 12){
        result = ((hour < 10) ? "0" + hour : hour);
        ext = 'AM';
    }else if(hour == 12){
        ext = 'PM';
    }
}
 
if(minutes < 10){
    minutes = "0" + minutes; 
}
 
result = result + ":" + minutes + ' ' + ext; 
 
console.log(result);

Check out a plunker example here

Answer 29

Answer №15

This response aims to be more user-friendly compared to other responses, especially for newcomers.

Outlined below is the method I have incorporated in some of my websites to indicate the most recent modification date of the site code. It utilizes AM/PM time format using the options parameter of date.toLocaleDateString (refer to relevant Mozilla documentation).

// Last modified timestamp of page code
const options = {
    year: "numeric",
    month: "long",
    weekday: "long",
    day: "numeric",
    hour: "numeric",
    minute: "numeric",
    second: "numeric",
    hour12: true // Focus on this line of code
    /*
        false: displays 24-hour time format
        true: displays 12-hour, AM and PM format
    */
};

let last = document.lastModified;
let date = new Date(last);
let local = date.toLocaleDateString("en-US", options);
let fullDate = `${local}`;
document.getElementById("updated").textContent = fullDate;

The resulting output will appear as follows:

Saturday, May 28, 2022, 8:38:50 PM

This output is then presented within the following HTML snippet:

<p>Last update: <span id="updated">_update_date_goes_here</span></p>

NOTE: Please bear in mind that in certain circumstances, the behavior of document.lastModified may vary based on whether it is executed locally or on an external server (see this query on Stack Overflow). However, it functions correctly when implemented on my GitHub page (you can witness it live on the site's footer).

Answer 30

This response aims to be more user-friendly compared to other responses, especially for newcomers.

Outlined below is the method I have incorporated in some of my websites to indicate the most recent modification date of the site code. It utilizes AM/PM time format using the options parameter of date.toLocaleDateString (refer to relevant Mozilla documentation).

// Last modified timestamp of page code
const options = {
    year: "numeric",
    month: "long",
    weekday: "long",
    day: "numeric",
    hour: "numeric",
    minute: "numeric",
    second: "numeric",
    hour12: true // Focus on this line of code
    /*
        false: displays 24-hour time format
        true: displays 12-hour, AM and PM format
    */
};

let last = document.lastModified;
let date = new Date(last);
let local = date.toLocaleDateString("en-US", options);
let fullDate = `${local}`;
document.getElementById("updated").textContent = fullDate;

The resulting output will appear as follows:

Saturday, May 28, 2022, 8:38:50 PM

This output is then presented within the following HTML snippet:

<p>Last update: <span id="updated">_update_date_goes_here</span></p>

NOTE: Please bear in mind that in certain circumstances, the behavior of document.lastModified may vary based on whether it is executed locally or on an external server (see this query on Stack Overflow). However, it functions correctly when implemented on my GitHub page (you can witness it live on the site's footer).

Answer 31

Answer №16

For those looking to simplify date formatting, I highly recommend checking out Datejs. Their pre-built formatters make the process seamless: http://code.google.com/p/datejs/wiki/APIDocumentation#toString

Datejs is a versatile library that comes in handy for various date-related tasks.

Answer 32

For those looking to simplify date formatting, I highly recommend checking out Datejs. Their pre-built formatters make the process seamless: http://code.google.com/p/datejs/wiki/APIDocumentation#toString

Datejs is a versatile library that comes in handy for various date-related tasks.

Answer 33

Answer №17

<script>
var currentDate = new Date();
var todayDate = currentDate.getDate();
var todayMonth =  currentDate.getMonth()+1;
var currentYear = currentDate.getFullYear();
var currentHours = currentDate.getHours();
var currentMinutes = currentDate.getMinutes();
var amPm = currentHours >= 12 ? 'PM' : 'AM';
currentHours = currentHours % 12;
currentHours = currentHours ? currentHours : 12; 
currentMinutes = currentMinutes < 10 ? '0'+currentMinutes : currentMinutes;
var currentDateTime = todayDate + '-' + todayMonth + '-' + currentYear + ' ' + currentHours + ':' + currentMinutes + ' ' + amPm;
alert(currentDateTime);
</script>

Answer 34

<script>
var currentDate = new Date();
var todayDate = currentDate.getDate();
var todayMonth =  currentDate.getMonth()+1;
var currentYear = currentDate.getFullYear();
var currentHours = currentDate.getHours();
var currentMinutes = currentDate.getMinutes();
var amPm = currentHours >= 12 ? 'PM' : 'AM';
currentHours = currentHours % 12;
currentHours = currentHours ? currentHours : 12; 
currentMinutes = currentMinutes < 10 ? '0'+currentMinutes : currentMinutes;
var currentDateTime = todayDate + '-' + todayMonth + '-' + currentYear + ' ' + currentHours + ':' + currentMinutes + ' ' + amPm;
alert(currentDateTime);
</script>

Answer 35

Answer №18

Check out this alternative method that is both straightforward and highly efficient:

        var now = new Date();

        var daysOfWeek = new Array(7);
        daysOfWeek[0] = "Sunday";
        daysOfWeek[1] = "Monday";
        daysOfWeek[2] = "Tuesday";
        daysOfWeek[3] = "Wednesday";
        daysOfWeek[4] = "Thursday";
        daysOfWeek[5] = "Friday";
        daysOfWeek[6] = "Saturday";

        var monthsOfYear = new Array(11);
        monthsOfYear[0] = "January";
        monthsOfYear[1] = "February";
        monthsOfYear[2] = "March";
        monthsOfYear[3] = "April";
        monthsOfYear[4] = "May";
        monthsOfYear[5] = "June";
        monthsOfYear[6] = "July";
        monthsOfYear[7] = "August";
        monthsOfYear[8] = "September";
        monthsOfYear[9] = "October";
        monthsOfYear[10] = "November";
        monthsOfYear[11] = "December";

        var timeNow = now.toLocaleTimeString().replace(/:\d+ /, ' ');

        document.write(daysOfWeek[now.getDay()] + ',' + " " + monthsOfYear[now.getMonth()] + " " + now.getDate() + ',' + " " + now.getFullYear() + '<br>' + now.toLocaleTimeString());

    </script></div><!-- #time -->

Answer 36

Check out this alternative method that is both straightforward and highly efficient:

        var now = new Date();

        var daysOfWeek = new Array(7);
        daysOfWeek[0] = "Sunday";
        daysOfWeek[1] = "Monday";
        daysOfWeek[2] = "Tuesday";
        daysOfWeek[3] = "Wednesday";
        daysOfWeek[4] = "Thursday";
        daysOfWeek[5] = "Friday";
        daysOfWeek[6] = "Saturday";

        var monthsOfYear = new Array(11);
        monthsOfYear[0] = "January";
        monthsOfYear[1] = "February";
        monthsOfYear[2] = "March";
        monthsOfYear[3] = "April";
        monthsOfYear[4] = "May";
        monthsOfYear[5] = "June";
        monthsOfYear[6] = "July";
        monthsOfYear[7] = "August";
        monthsOfYear[8] = "September";
        monthsOfYear[9] = "October";
        monthsOfYear[10] = "November";
        monthsOfYear[11] = "December";

        var timeNow = now.toLocaleTimeString().replace(/:\d+ /, ' ');

        document.write(daysOfWeek[now.getDay()] + ',' + " " + monthsOfYear[now.getMonth()] + " " + now.getDate() + ',' + " " + now.getFullYear() + '<br>' + now.toLocaleTimeString());

    </script></div><!-- #time -->

Answer 37

Answer №19

In the scenario where you have a time represented as a string like this: var myTime = "15:30", you can employ the below code snippet to extract the am pm value.

var hour = parseInt(myTime.split(":")[0]) % 12;
var timeInAmPm = (hour == 0 ? "12": hour ) + ":" + myTime.split(":")[1] + " " + (parseInt(parseInt(myTime.split(":")[0]) / 12) < 1 ? "am" : "pm");

Answer 38

In the scenario where you have a time represented as a string like this: var myTime = "15:30", you can employ the below code snippet to extract the am pm value.

var hour = parseInt(myTime.split(":")[0]) % 12;
var timeInAmPm = (hour == 0 ? "12": hour ) + ":" + myTime.split(":")[1] + " " + (parseInt(parseInt(myTime.split(":")[0]) / 12) < 1 ? "am" : "pm");

Answer 39

Answer №20

If you're in need of a short solution:

const formatAMPM = date => `${(date.getHours() % 12) || 12}:${date.getMinutes().toString().padStart(2, '0')} ${date.getHours() < 12 ? 'AM' : 'PM'}`

Alternatively, here's a more readable 3-line version (or if your browser doesn't support padStart):

const formatAMPM = (date) => {
  let minutes = date.getMinutes()
  minutes = minutes < 10 ? '0' + minutes : minutes
  return `${(date.getHours() % 12) || 12}:${minutes} ${date.getHours() < 12 ? 'AM' : 'PM'}`
}

Answer 40

If you're in need of a short solution:

const formatAMPM = date => `${(date.getHours() % 12) || 12}:${date.getMinutes().toString().padStart(2, '0')} ${date.getHours() < 12 ? 'AM' : 'PM'}`

Alternatively, here's a more readable 3-line version (or if your browser doesn't support padStart):

const formatAMPM = (date) => {
  let minutes = date.getMinutes()
  minutes = minutes < 10 ? '0' + minutes : minutes
  return `${(date.getHours() % 12) || 12}:${minutes} ${date.getHours() < 12 ? 'AM' : 'PM'}`
}

Answer 41

Answer №21

function displayCurrentTime() {
  const today = new Date();
  let hours = today.getHours();
  let minutes = today.getMinutes();
  let seconds = today.getSeconds();
  var meridiem = hours >= 12 ? "PM" : "AM";
  hours = hours % 12;
  hours = hours ? hours : 12;
  minutes = minutes < 10 ? "0" + minutes : minutes;
  seconds = seconds < 10 ? "0" + seconds : seconds;
  var timeString = hours + ":" + minutes + ":" + seconds + " " + meridiem;
  document.getElementById('time').innerText = timeString;
  setTimeout(displayCurrentTime, 1000);
}

displayCurrentTime();

<h1 id='time'></h1>

Answer 42

function displayCurrentTime() {
  const today = new Date();
  let hours = today.getHours();
  let minutes = today.getMinutes();
  let seconds = today.getSeconds();
  var meridiem = hours >= 12 ? "PM" : "AM";
  hours = hours % 12;
  hours = hours ? hours : 12;
  minutes = minutes < 10 ? "0" + minutes : minutes;
  seconds = seconds < 10 ? "0" + seconds : seconds;
  var timeString = hours + ":" + minutes + ":" + seconds + " " + meridiem;
  document.getElementById('time').innerText = timeString;
  setTimeout(displayCurrentTime, 1000);
}

displayCurrentTime();

<h1 id='time'></h1>

Answer 43

Answer №22

Use this code snippet to easily ascertain whether it is morning or afternoon

var currentDate = new Date();
var noonTime = new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate(), 12, 0, 0);
var periodOfDay = (currentDate.getTime() < noonTime.getTime()) ? 'am' : 'pm';

Answer 44

Use this code snippet to easily ascertain whether it is morning or afternoon

var currentDate = new Date();
var noonTime = new Date(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate(), 12, 0, 0);
var periodOfDay = (currentDate.getTime() < noonTime.getTime()) ? 'am' : 'pm';

Answer 45

Answer №23

Give this a shot

      let currentDate = new Date();
      let currentHours = currentDate.getHours();
      let currentMinutes = currentDate.getMinutes();
      let currentSeconds = currentDate.getSeconds();
      let period = currentHours >= 12 ? "pm" : "am";

Answer 46

Give this a shot

      let currentDate = new Date();
      let currentHours = currentDate.getHours();
      let currentMinutes = currentDate.getMinutes();
      let currentSeconds = currentDate.getSeconds();
      let period = currentHours >= 12 ? "pm" : "am";

Answer 47

Answer №24

function formatTime( d = new Date(), includeAMPM = true ) 
{
    var hour = d.getHours();
    
    if ( includeAMPM )
    {
        var a = ( hour >= 12 ) ? 'PM' : 'AM';
        hour = hour % 12;
        hour = hour ? hour : 12; // the hour '0' should be '12'  
    }

    var hourValue    = checkDigit(hour);  
    var minuteValue  = checkDigit(d.getMinutes());
    var secondValue  = checkDigit(d.getSeconds());
  
    // https://stackoverflow.com/questions/1408289/how-can-i-do-string-interpolation-in-javascript
    return ( includeAMPM ) ? `${hourValue}:${minuteValue}:${secondValue} ${a}` : `${hourValue}:${minuteValue}:${secondValue}`;
}

function checkDigit(t)
{
  return ( t < 10 ) ? `0${t}` : t;
}

document.querySelector("#time1").innerHTML = formatTime();
document.querySelector("#time2").innerHTML = formatTime( new Date(), false );

<p>ampm display:   <span id="time1"></span> (default)</p>
<p>ampm hidden:  <span id="time2"></span></p>

Answer 48

function formatTime( d = new Date(), includeAMPM = true ) 
{
    var hour = d.getHours();
    
    if ( includeAMPM )
    {
        var a = ( hour >= 12 ) ? 'PM' : 'AM';
        hour = hour % 12;
        hour = hour ? hour : 12; // the hour '0' should be '12'  
    }

    var hourValue    = checkDigit(hour);  
    var minuteValue  = checkDigit(d.getMinutes());
    var secondValue  = checkDigit(d.getSeconds());
  
    // https://stackoverflow.com/questions/1408289/how-can-i-do-string-interpolation-in-javascript
    return ( includeAMPM ) ? `${hourValue}:${minuteValue}:${secondValue} ${a}` : `${hourValue}:${minuteValue}:${secondValue}`;
}

function checkDigit(t)
{
  return ( t < 10 ) ? `0${t}` : t;
}

document.querySelector("#time1").innerHTML = formatTime();
document.querySelector("#time2").innerHTML = formatTime( new Date(), false );

<p>ampm display:   <span id="time1"></span> (default)</p>
<p>ampm hidden:  <span id="time2"></span></p>

Answer 49

Answer №25

   const convertTimeFormat = (timeString) => {
    try {
      let timeArr = timeString.split(" ");
      let hours = timeArr[4].split(":")[0];
      let minutes = timeArr[4].split(":")[1];
      hours = hours || 12;
      const ampm = hours >= 12 ? " PM" : " AM";
      minutes = minutes < 10 ? `${minutes}` : minutes;
      hours %= 12;
      const formattedTime = `${hours}:${minutes} ${ampm}`;
      return formattedTime;
    } catch (error) {
      return "";
    }
  };

const startTime = "2021-12-07T17:00:00.073Z"
convertTimeFormat(new Date(startTime).toUTCString())

Answer 50

   const convertTimeFormat = (timeString) => {
    try {
      let timeArr = timeString.split(" ");
      let hours = timeArr[4].split(":")[0];
      let minutes = timeArr[4].split(":")[1];
      hours = hours || 12;
      const ampm = hours >= 12 ? " PM" : " AM";
      minutes = minutes < 10 ? `${minutes}` : minutes;
      hours %= 12;
      const formattedTime = `${hours}:${minutes} ${ampm}`;
      return formattedTime;
    } catch (error) {
      return "";
    }
  };

const startTime = "2021-12-07T17:00:00.073Z"
convertTimeFormat(new Date(startTime).toUTCString())

Answer 51

Answer №26

var today = new Date();
var hours = today.getHours() % 12;
hours = hours ? hours : 12;
var displayTime = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][(today.getMonth() + 1)] 
+ " " + ("00" + today.getDate()).slice(-2) + " " + today.getFullYear() + " " + 
("00" + hours).slice(-2) + ":" + ("00" + today.getMinutes()).slice(-2) + ":" + ("00" + today.getSeconds()).slice(-2) 
+ ' ' + (today.getHours() >= 12 ? 'PM' : 'AM');

document.getElementById("current-time").innerHTML = displayTime;

<p id="current-time" ></p>

Answer 52

var today = new Date();
var hours = today.getHours() % 12;
hours = hours ? hours : 12;
var displayTime = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][(today.getMonth() + 1)] 
+ " " + ("00" + today.getDate()).slice(-2) + " " + today.getFullYear() + " " + 
("00" + hours).slice(-2) + ":" + ("00" + today.getMinutes()).slice(-2) + ":" + ("00" + today.getSeconds()).slice(-2) 
+ ' ' + (today.getHours() >= 12 ? 'PM' : 'AM');

document.getElementById("current-time").innerHTML = displayTime;

<p id="current-time" ></p>

Answer 53

Answer №27

<h1 id="clock_display" class="text-center" style="font-size:40px; color:#ffffff">[DISPLAYS CURRENT TIME]</h1>

<script>
            var AM_or_PM = "AM";

            function displayTime(){

                var today = new Date();
                var hours = today.getHours();
                var minutes = today.getMinutes();
                var seconds = today.getSeconds();

                hours = convertToTwelveHourFormat(hours);
                minutes = addLeadingZero(minutes);
                seconds = addLeadingZero(seconds);

                document.getElementById('clock_display').innerHTML =
                    hours + ":" + minutes + ":" + seconds +" "+AM_or_PM;
                var timer = setTimeout(displayTime, 1000);

            }

            function addLeadingZero(i){

                if(i < 10){
                    i = "0" + i;// add zero in front of numbers < 10
                }
                return i;
            }

            // CONVERT TO 12 HOUR FORMAT AND DETERMINE AM OR PM
            function convertToTwelveHourFormat(hours){

                if(hours > 12){
                    hours = hours - 12;
                    AM_or_PM = " PM";
                }
                return hours;

            }

            displayTime();

        </script>

Answer 54

<h1 id="clock_display" class="text-center" style="font-size:40px; color:#ffffff">[DISPLAYS CURRENT TIME]</h1>

<script>
            var AM_or_PM = "AM";

            function displayTime(){

                var today = new Date();
                var hours = today.getHours();
                var minutes = today.getMinutes();
                var seconds = today.getSeconds();

                hours = convertToTwelveHourFormat(hours);
                minutes = addLeadingZero(minutes);
                seconds = addLeadingZero(seconds);

                document.getElementById('clock_display').innerHTML =
                    hours + ":" + minutes + ":" + seconds +" "+AM_or_PM;
                var timer = setTimeout(displayTime, 1000);

            }

            function addLeadingZero(i){

                if(i < 10){
                    i = "0" + i;// add zero in front of numbers < 10
                }
                return i;
            }

            // CONVERT TO 12 HOUR FORMAT AND DETERMINE AM OR PM
            function convertToTwelveHourFormat(hours){

                if(hours > 12){
                    hours = hours - 12;
                    AM_or_PM = " PM";
                }
                return hours;

            }

            displayTime();

        </script>

Answer 55

Answer №28

function displayCurrentDateTime() {
  var now = new Date();
  var year = now.getFullYear();
  var month = now.getMonth() + 1;
  var day = now.getDate();

  if (month.toString().length == 1) {
    month = '0' + month;
  }
  if (day.toString().length == 1) {
    day = '0' + day;
  }

  var hours = now.getHours();
  var minutes = now.getMinutes();
  var ampm = hours >= 12 ? 'pm' : 'am';
  hours = hours % 12;
  hours = hours ? hours : 12;
  minutes = minutes < 10 ? '0' + minutes : minutes;
  var timeWithAmPm = hours + ':' + minutes + ' ' + ampm;

  var dateTimeFormatted = monthNames[parseInt(month) - 1] + ' ' + day + ' ' + year + ' ' + timeWithAmPm;
  return dateTimeFormatted;
}

Answer 56

function displayCurrentDateTime() {
  var now = new Date();
  var year = now.getFullYear();
  var month = now.getMonth() + 1;
  var day = now.getDate();

  if (month.toString().length == 1) {
    month = '0' + month;
  }
  if (day.toString().length == 1) {
    day = '0' + day;
  }

  var hours = now.getHours();
  var minutes = now.getMinutes();
  var ampm = hours >= 12 ? 'pm' : 'am';
  hours = hours % 12;
  hours = hours ? hours : 12;
  minutes = minutes < 10 ? '0' + minutes : minutes;
  var timeWithAmPm = hours + ':' + minutes + ' ' + ampm;

  var dateTimeFormatted = monthNames[parseInt(month) - 1] + ' ' + day + ' ' + year + ' ' + timeWithAmPm;
  return dateTimeFormatted;
}

Answer 57

Answer №29

Below is my proposed solution:

function retrieveTime() {
var presentDate = new Date();
var hours = presentDate.getHours();
var minutes = presentDate.getMinutes();
var strampm;
if (hours >= 12) {
    strampm= "PM";
} else {
    strampm= "AM";
}
hours = hours % 12;
if (hours == 0) {
    hours = 12;
}
_hours = checkAndAddZero(hours);
_minutes = checkAndAddZero(minutes);
console.log(_hours + ":" + _minutes + " " + strampm);
}

function checkAndAddZero(i) {
if (i < 10) {
    i = "0" + i
}
return i;
}

Answer 58

Below is my proposed solution:

function retrieveTime() {
var presentDate = new Date();
var hours = presentDate.getHours();
var minutes = presentDate.getMinutes();
var strampm;
if (hours >= 12) {
    strampm= "PM";
} else {
    strampm= "AM";
}
hours = hours % 12;
if (hours == 0) {
    hours = 12;
}
_hours = checkAndAddZero(hours);
_minutes = checkAndAddZero(minutes);
console.log(_hours + ":" + _minutes + " " + strampm);
}

function checkAndAddZero(i) {
if (i < 10) {
    i = "0" + i
}
return i;
}

Answer 59

Answer №30

One simple way to accomplish this task is by utilizing the ternary operator, though an alternative approach could involve using if-else statements!

const now = new Date();
let hours = now.getHours();
let minutes = now.getMinutes();

// Adding leading zero for single digit minute
let formattedMinutes = minutes < 10 ? `0${minutes}` : minutes;

const currentTime = hours >= 12 ? `${hours - 12}:${formattedMinutes} pm` : `${hours}:${formattedMinutes} am`;
console.log(currentTime);

Answer 60

One simple way to accomplish this task is by utilizing the ternary operator, though an alternative approach could involve using if-else statements!

const now = new Date();
let hours = now.getHours();
let minutes = now.getMinutes();

// Adding leading zero for single digit minute
let formattedMinutes = minutes < 10 ? `0${minutes}` : minutes;

const currentTime = hours >= 12 ? `${hours - 12}:${formattedMinutes} pm` : `${hours}:${formattedMinutes} am`;
console.log(currentTime);

What is the best way to format a JavaScript datetime to show in 12 hour AM/PM style?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

Answer №8

Answer №9

Answer №10

Answer №11

Answer №12

Answer №13

Answer №14

Answer №15

Answer №16

Answer №17

Answer №18

Answer №19

Answer №20

Answer №21

Answer №22

Answer №23

Answer №24

Answer №25

Answer №26

Answer №27

Answer №28

Answer №29

Answer №30

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