Timezone Knowledge Base

The History of GMT and UTC: From Observatory Time to Atomic Seconds

GMT started as an astronomy-based reference for navigation and schedules. UTC modernized the idea with atomic clocks (plus leap seconds). Here’s the clear history—and what it means for business and software today.

Published: February 17, 2026 Read time: 12 minutes

Why Does China Use Only One Time Zone? A Clear, Practical Explanation

China is wide enough for multiple time zones, yet the whole country uses Beijing Time (UTC+8). Here’s the real-world “why”—history, coordination, and how people in western China adapt—plus travel and remote-work scheduling tips.

Published: February 15, 2026 Read time: 10 minutes

Mastering UTC: The Backbone of Global Time Synchronization

Discover everything about UTC time – from its history and science to real-world applications. Perfect for travelers, tech enthusiasts, and time geeks! Master Coordinated Universal Time and understand leap seconds, atomic clocks, and global time standards.

Published: August 27, 2025 Read time: 12 minutes

More English articles coming soon...

We are working on translating more articles to English. Please check back later for updates.

For now, you can visit our Chinese blog for more timezone-related articles.