Track time across multiple cities and time zones in real time. Free online world clock with 20+ major cities. Pure client-side, instant updates.
Our free online World Clock lets you track time across multiple cities and time zones simultaneously. Perfect for remote workers, travelers, and anyone coordinating with people around the globe. The clock updates every second, handles daylight saving time automatically, and works entirely in your browser with no downloads required.
Yes! Our World Clock uses the browser's Intl.DateTimeFormat API, which automatically handles daylight saving time transitions for all supported time zones. You never need to manually adjust for DST.
You can add as many cities as you like. There is no hard limit. Your city selection is saved to your browser's localStorage, so it persists across sessions.
Absolutely! The World Clock is fully responsive and works perfectly on mobile phones, tablets, and desktop computers.