React Awesome Countdown Timer

A modern, customizable countdown timer component for React applications. Built with React hooks and styled with CSS classes for easy customization.

Live Demo: https://codesandbox.io/p/sandbox/ypnt3l

✨ Features

• 🎯 Modern React - Built with functional components and hooks
• 🎨 Fully Customizable - Style with CSS classes or inline styles
• 📦 Zero Dependencies - No external dependencies required
• ⚡ Lightweight - Only ~1.5KB gzipped
• 🚀 Fast - Optimized with useMemo for performance
• 🔧 TypeScript Ready - Includes type definitions
• 🌐 ESM Support - Modern module format

📦 Installation

Using npm:

npm install react-awesome-countdowntimer

Using pnpm:

pnpm add react-awesome-countdowntimer

Using yarn:

yarn add react-awesome-countdowntimer

🚀 Quick Start

import CountdownTimer from 'react-awesome-countdowntimer';
import 'react-awesome-countdowntimer/dist/index.css';

function App() {
  const endDate = new Date('2026-12-31T23:59:59');
  
  return <CountdownTimer endDate={endDate} />;
}

📖 Usage Examples

Basic Usage

import CountdownTimer from 'react-awesome-countdowntimer';
import 'react-awesome-countdowntimer/dist/index.css';

function App() {
  const endDate = new Date('2026-12-31T23:59:59');
  
  return (
    <div>
      <h1>New Year Countdown</h1>
      <CountdownTimer endDate={endDate} />
    </div>
  );
}

With Custom Inline Styles

import CountdownTimer from 'react-awesome-countdowntimer';
import 'react-awesome-countdowntimer/dist/index.css';

function App() {
  const endDate = new Date('2026-12-31T23:59:59');
  
  return (
    <CountdownTimer 
      endDate={endDate}
      timerStyle={{ 
        backgroundColor: '#f0f4f8', 
        padding: '30px',
        borderRadius: '15px'
      }}
      sectionStyle={{ 
        backgroundColor: '#3b82f6', 
        borderRadius: '12px',
        minWidth: '120px',
        minHeight: '120px'
      }}
      timeStyle={{ 
        color: '#ffffff', 
        fontSize: '60px',
        fontWeight: 'bold'
      }}
      labelStyle={{ 
        color: '#1e40af', 
        fontSize: '16px',
        fontWeight: '600'
      }}
    />
  );
}

With Custom CSS Classes

import CountdownTimer from 'react-awesome-countdowntimer';
import 'react-awesome-countdowntimer/dist/index.css';
import './custom-timer.css';

function App() {
  const endDate = new Date('2026-12-31T23:59:59');
  
  return (
    <CountdownTimer 
      endDate={endDate}
      timerClassName="my-custom-timer"
      sectionClassName="my-custom-section"
      timeClassName="my-custom-time"
      labelClassName="my-custom-label"
    />
  );
}

custom-timer.css:

.my-custom-timer {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 40px;
  border-radius: 20px;
}

.my-custom-section {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.my-custom-time {
  color: #ffffff;
  font-size: 56px;
  font-weight: 700;
}

.my-custom-label {
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
}

With Dynamic Date Selection

import { useState } from 'react';
import DateTimePicker from 'react-datetime-picker';
import CountdownTimer from 'react-awesome-countdowntimer';
import 'react-awesome-countdowntimer/dist/index.css';

function App() {
  const [selectedDate, setSelectedDate] = useState(new Date('2026-12-31T23:59:59'));
  
  return (
    <div>
      <h2>Pick Your Target Date</h2>
      <DateTimePicker
        onChange={setSelectedDate}
        value={selectedDate}
      />
      
      <h2>Countdown</h2>
      <CountdownTimer endDate={selectedDate} />
    </div>
  );
}

Creating Dates

Since the component uses native JavaScript Date objects, you can create dates in multiple ways:

// Using Date constructor with string
const endDate1 = new Date('2026-12-31T23:59:59');

// Using Date constructor with parameters (year, month, day, hour, minute, second)
const endDate2 = new Date(2026, 11, 31, 23, 59, 59); // Note: month is 0-indexed

// Adding time to current date
const endDate3 = new Date(Date.now() + 7 * 24 * 60 * 60 * 1000); // 7 days from now

// Using any of these
<CountdownTimer endDate={endDate1} />

🎛️ API Reference

Props

Prop	Type	Required	Default	Description
endDate	Date	✅ Yes	-	The target date/time for the countdown
timerClassName	string	❌ No	''	Custom CSS class for the timer container
sectionClassName	string	❌ No	''	Custom CSS class for each time unit section
timeClassName	string	❌ No	''	Custom CSS class for the time numbers
labelClassName	string	❌ No	''	Custom CSS class for the labels (Months, Days, etc.)
timerStyle	object	❌ No	undefined	Inline styles for the timer container
sectionStyle	object	❌ No	undefined	Inline styles for each time unit section
timeStyle	object	❌ No	undefined	Inline styles for the time numbers
labelStyle	object	❌ No	undefined	Inline styles for the labels

Default CSS Classes

The component uses these CSS classes by default (can be overridden):

• .react-countdown-timer - Main container
• .react-countdown-section - Each time unit box (months, days, hours, etc.)
• .react-countdown-time - The number display
• .react-countdown-label - The label text ("Months", "Days", etc.)

Time Units Displayed

The timer automatically displays only non-zero time units:

• Months - Shown if > 0
• Days - Shown if > 0
• Hours - Shown if > 0
• Minutes - Shown if > 0
• Seconds - Shown if > 0

🎨 Styling Guide

Default Styles

The component comes with default styles that provide a clean, modern look:

• Black background sections with rounded corners
• White text for numbers (74px)
• White background labels with black text (22px)

Customization Options

1. CSS Classes (Recommended) - Override default classes in your CSS
2. Inline Styles - Pass style objects via props
3. Mix Both - Combine CSS classes with inline style overrides

CSS Class Hierarchy

.react-countdown-timer (or your timerClassName)
  └── .react-countdown-section (or your sectionClassName)
        ├── .react-countdown-time (or your timeClassName)
        └── .react-countdown-label (or your labelClassName)

🛠️ Development

This package uses Vite for building and pnpm for package management.

Setup

git clone https://github.com/hassantauqeer/react-awesome-countdowntimer.git
cd react-awesome-countdowntimer
pnpm install

Build

pnpm run build

Watch Mode (for development)

pnpm run build:watch

Run Example App

cd example-vite
pnpm install
pnpm run dev

Then open http://localhost:5173 to see the examples.

📋 Requirements

• React 16.8+ (hooks support)
• No other dependencies required!

📄 License

MIT © Hassan Tauqeer

🤝 Contributing

Contributions, issues, and feature requests are welcome!

⭐ Show Your Support

Give a ⭐️ if this project helped you!