Best matchRelated: dates and timeBeginner
New Year Countdown
Work with date and time values in a browser interface.
Build a new year countdown →Digital Clock
Build a digital clock with HTML, CSS, and JavaScript while practicing setTimeout and DOM selection.
Beginner20–30 minutesHTML5CSS3JavaScript
You’ll practice
setTimeoutDOM SelectionDOM Content Updates
01 — What you’ll build
Digital Clock
Build a digital clock using HTML, CSS, and JavaScript, then connect the interface to the logic that makes it work. You’ll learn how to calculate the current time and keep the interface updated while getting hands-on practice with setTimeout, DOM selection, and DOM content updates.
02 — Included
- Click-based interactions
- Digital Clock interface
- Responsive HTML and CSS layout
- Complete source code and live demo
03 — You’ll practice
- Delay actions with setTimeout
- Select HTML elements from the DOM
- Update content on the page
- Work with dates and time
- Control behavior with conditions
- Perform calculations with JavaScript
Recommended knowledge: Basic HTML and CSS, The JavaScript Date object, JavaScript functions and callbacks, Browser timers.
Complete project files
Build It from the Source Code
This project uses timed JavaScript updates.
- 1Create 3 files
- 2Copy the code
- 3Run
index.html
Before you run it
- Leave the tab open to see the timed behavior update.
- Keep an internet connection available for external assets.
Project structure
digital-clock/
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Digital Clock</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<h2>Digital Clock</h2>
<div class="clock">
<div>
<span id="hour">00</span>
<span class="text">Hours</span>
</div>
<div>
<span id="minutes">00</span>
<span class="text">Minutes</span>
</div>
<div>
<span id="seconds">00</span>
<span class="text">Seconds</span>
</div>
<div>
<span id="ampm">AM</span>
</div>
</div>
<script src="index.js"></script>
</body>
</html>
JS Related Projects
Practice with Related Projects
Practice dates and time, javaScript calculations, and setTimeout with these related projects.
Best match
Related: JavaScript calculations
Month Calender
Turn JavaScript calculations into clear visual results.
Build a month calender →
Related: setTimeoutBeginner
Auto Text Effect Animation
Build a timed text animation that updates one character at a time.
Build the text effect →Related: dates and timeBest match
New Year Countdown
Work with date and time values in a browser interface.
Build a new year countdownRelated: JavaScript calculations
Month Calender
Turn JavaScript calculations into clear visual results.
Build a month calenderRelated: setTimeout
Auto Text Effect Animation
Build a timed text animation that updates one character at a time.
Build the text effect