A privacy-focused world clock for Chrome. See multiple time zones at a glance, work offline, and never miss another call with your global team.
Everything you need to stay synchronized with your team, nothing you don't.
Syncs every second. See time changes as they happen with zero lag.
Easy on the eyes. Toggle between light and dark themes instantly.
Track any city in the world. Search and add custom timezones.
Works completely offline. No data collection, no tracking, ever.
Power user friendly. Copy times and switch views without clicking.
No ads, no subscriptions, no catch. Open source and transparent.
Experience the extension right here - no installation needed!
Click any clock to copy the time. This is a live preview of the actual extension!
Convert times between any time zones instantly. No account required!
Schedule meetings across multiple time zones
No overlapping business hours found. Try unchecking "Business hours only".
| Feature | World Clock Extension | Other Extensions |
|---|---|---|
| Free Forever | ✅ Yes | ❌ Often Paid |
| 100% Offline | ✅ Yes | ❌ Usually Requires Internet |
| No Data Collection | ✅ Zero Tracking | ❌ Often Tracks Usage |
| Dark Mode | ✅ Built-in | ⚠️ Sometimes |
| Customizable | ✅ Full Settings | ⚠️ Limited |
| Keyboard Shortcuts | ✅ Full Support | ⚠️ Rare |
| Open Source | ✅ Yes | ❌ Usually No |
| Copy to Clipboard | ✅ One-Click | ⚠️ Sometimes |
Coordinate with team members across different time zones. Never schedule a meeting at the wrong time again.
Keep track of when your international colleagues are available. Perfect for distributed companies.
Stay connected with home time while traveling. Know when to call family and friends.
Schedule events that work for participants worldwide. Convert times instantly.
Keep track of class times, deadlines, and when to contact professors in different time zones.
Coordinate releases, stand-ups, and code reviews across global development teams.
Get started in less than 2 minutes
Click the download button to get the latest version from GitHub. The ZIP file contains all extension files.
Extract the downloaded ZIP file to a folder on your computer. Remember where you saved it!
Right-click ZIP → Extract All → Choose locationOpen Chrome and navigate to the extensions page. You can do this by:
chrome://extensions/ in the address bar, orToggle the "Developer mode" switch in the top-right corner of the extensions page.
Click "Load unpacked" button, then select the folder where you extracted the extension files.
Click the extension icon in your toolbar to view all time zones. Pin it for easy access!
Video Demo Coming Soon
Watch a quick walkthrough of all features
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Know when your team members are available for Slack messages
Coordinate deadlines and meetings across global Notion workspaces
Quickly copy times to include in emails to international contacts
Have a question or feedback? Fill out the form below and we'll get back to you.
Get the extension from GitHub. It's open source and completely free.
Load it in Chrome via Developer mode. Takes about 30 seconds.
Click the icon to see times. That's it—no account needed.
Free, private, and built for people who work across borders.
Free forever · No account · Works offline
Yes! The extension works completely offline. It uses your browser's built-in timezone calculations and doesn't require an internet connection.
Currently, the extension is only available for Chrome. However, since it's open source, you can adapt it for other browsers.
Since it's installed manually, you'll need to download the latest version from GitHub (the download button always provides the most recent version) and reload it in Chrome's extension settings.
The extension currently displays EST, PST, Brazil, and Italy. You can modify the source code to add more time zones if needed.
No. The extension operates entirely offline and doesn't collect, store, or transmit any data. Your privacy is completely protected.
The extension works with Chrome version 88 or later. It uses standard Chrome extension APIs that are widely supported.