Best matchRelated: dates and timeBeginner
Digital Clock
Calculate the current time and keep the display updated.
Build a digital clock →New Year Countdown
Build a new year countdown 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
New Year Countdown
Build a new year countdown using HTML, CSS, and JavaScript, then connect the interface to the logic that makes it work. You’ll learn how to calculate the remaining time and update the countdown automatically while getting hands-on practice with setTimeout, DOM selection, and DOM content updates.
02 — Included
- Click-based interactions
- New Year Countdown 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
- 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.
Project structure
new-year-countdown/
<!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>New Year Countdown</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<h2>Countdown to New Year</h2>
<div class="year">2024</div>
<div class="countdown">
<div id="day">00</div>
<div id="hour">00</div>
<div id="minute">00</div>
<div id="second">00</div>
</div>
<script src="index.js"></script>
</body>
</html>
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