World Clock
Compare current time across multiple cities. Use the slider to find meeting times that work for everyone.
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UTC (You)
08:09:02 AM
Sat, Feb 28GMT☀️
🇺🇸 New York
03:09:02 AM
Sat, Feb 28GMT-5🌙
🇬🇧 London
08:09:02 AM
Sat, Feb 28GMT☀️
🇯🇵 Tokyo
05:09:02 PM
Sat, Feb 28GMT+9☀️
Documentation
How It Works
All times are generated using the browser's native Intl.DateTimeFormat API with IANA time zone identifiers. This means DST transitions, historical rule changes, and leap seconds are all handled automatically — no external API required.
The offset slider shifts all displayed times equally, helping you find a window where business hours overlap across all zones.
Features
- ✓ 120+ cities across 50+ countries
- ✓ Automatic DST handling
- ✓ Day/Night visual indicator
- ✓ ±12h meeting planner slider
Disclaimer: For informational purposes only.
Frequently Asked Questions
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