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Digital Clock, Stopwatch & Timer App

A multi-feature Digital Clock application built with Vanilla JavaScript that includes a real-time clock, stopwatch with lap tracking, and a countdown timer with alerts.

⏱️4–5 hours
📅Added: Dec 15, 2024

About This Project

This Digital Clock project is a complete beginner-to-intermediate level JavaScript application that combines three time-based utilities into a single interface. Users can view the current time with date and timezone, switch between 12 and 24 hour formats, use a stopwatch with lap recording, and run a countdown timer with visual progress and alerts. The app also supports dark mode with saved preferences, keyboard shortcuts, and a fully responsive UI — making it a strong portfolio-ready JavaScript project.

Key Features

  • ✓Real-time digital clock with date & timezone
  • ✓12 / 24 hour format toggle
  • ✓Stopwatch with lap recording
  • ✓Countdown timer with progress ring
  • ✓Timer sound alert & browser notification
  • ✓Dark mode with saved preference
  • ✓Keyboard shortcuts support
  • ✓Tab-based UI navigation
  • ✓Responsive design

What You'll Learn

  • 📚Working with Date and Time in JavaScript
  • 📚setInterval & time-based logic
  • 📚State management without frameworks
  • 📚DOM manipulation & event handling
  • 📚LocalStorage usage
  • 📚Keyboard event handling
  • 📚Building multi-feature JS apps

Tech Stack

HTML5CSS3Vanilla JavaScript (ES6+)LocalStorage APIFont Awesome Icons

Tags

#digital-clock#stopwatch#timer#javascript#beginner#portfolio-project