How to create a Digital Clock using JavaScript

In this simple article, I am going to share with you the source code of a simple animated Digital Clock in JavaScript.

Since, browsers can execute the JavaScript program at the client-side, the script(in this case app.js) will pick up the time of the client's computer and display it in the browser using the globally known date object and its methods.

Tutorial
HTML
copy

<div class="container">
<h1>Digital Clock</h1>
<div id="clock"></div>
</div>
	

CSS
copy

body{
  margin:0;
  padding:0;
  background:rgb(32, 28, 28);
}


h1{
  color:tomato;
  text-decoration: underline;
}

.container{
  display: flex;
  flex-direction:column;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

#clock{
  text-align: center;
  font-size:2rem;
  color:#fff;
}

#clock span{
  padding:10px;
  background:#444;
  border-radius: 50%;
}
	

JAVASCRIPT

I added another simple line to tell if its PM or AM on the last span element.

copy

document.addEventListener('DOMContentLoaded', () => {

const clockDiv = document.querySelector('#clock');

const timer = () => {
const now = new Date();

const hour = now.getHours();
const minutes = now.getMinutes();
const seconds = now.getSeconds();


const markup = `
<span>${hour < 10 ? '0' + hour : hour}</span> :
<span>${minutes < 10 ? '0' + minutes : minutes}</span> :
<span>${seconds < 10 ? '0' + seconds : seconds}</span>

//Added it after tutorial
<span>${hour >= 12 ? 'PM' : 'AM'}</span>

`;

clockDiv.innerHTML = markup;
}

setInterval(() => {
timer();
}, 1000)

});
	

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collections_bookmark Category :: Javascript
date_range Published :: 1 year ago At: 03:05 AM
event_note Detailed Date :: May 23rd, 2020
person Writer :: Code
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