Library Comparison

Datezone is the new kid on the block, joining popular libraries like date-fns, Luxon, and Moment.js.

Check out our performance benchmarks to see how fast it really is.

📊 Quick Comparison

⚡ Why Datezone is Fast

Our benchmarks show Datezone wins 86% of the time against date-fns:

🎯 What's Faster

• Timezone stuff: 10-100x faster than other libraries
• Adding days/months: Much quicker math
• Formatting dates: Faster text output
• Parsing dates: Quicker text-to-date conversion

📈 Notable Performance Areas

• Day operations: Significant improvements in timezone-aware date calculations
• Format operations: Faster date formatting across all timezone contexts
• ISO operations: Enhanced parsing and serialization performance
• Month/Year calculations: Optimized calendar arithmetic

🔬 Benchmark Methodology

Our benchmarks compare equivalent timezone-aware operations using:

• Datezone: Built-in timezone support
• date-fns: v4.x with @date-fns/tz package
• Realistic test scenarios across different timezone contexts
• Statistical significance testing with multiple iterations

Your results might be different depending on what you're building.

🎯 Should You Use Datezone?

Datezone might be a good fit for your project if:

🏗️ Modern Architecture Needs

• You want built-in timezone support without additional dependencies
• You prefer working with timestamps for performance-critical applications
• You need immutable date operations by default

🚀 Performance Requirements

• You're doing frequent date calculations in performance-sensitive code
• You need consistent performance when handling many date operations
• You want to minimize garbage collection pressure

📦 Modern Experience

• Built for today's JavaScript
• Tree-shaking to keep bundles small
• No old baggage from 2010

📈 Code Comparison

// Unified packages, Pure timestamps
import { addDays, format } from "datezone";

const date = Date.UTC(2024, 5, 1, 8, 0, 0, 0); // 2024-06-01 08:00:00 UTC

// Adds 5 days in the Tokio timezone
const future = addDays(date, 5, "Asia/Tokyo");

// Formats the date in the Europe/Stockholm timezone
const result = format(future, "yyyy-MM-dd HH:mm:ss", {
	timeZone: "Europe/Stockholm",
});

console.log(result); // 2024-06-06 10:00:00

🎁 What Makes Datezone Different

• Timestamp-first design - Built around performance-friendly timestamps
• Integrated timezone support - No separate packages needed
• Immutable by default - Prevents common mutation bugs
• TypeScript native - Designed in TypeScript from day one
• Modern Intl API usage - Leverages browser-native capabilities and built-in localization
• Smart caching - Optimizes timezone operations automatically