🕐 World Clock – Live Multi-Timezone Clock
Instantly see the current time in multiple cities around the world — free, no sign-up required, and runs entirely in your browser with no data sent anywhere.
About
This world clock displays live, ticking time for up to 10 timezones including Seoul, Tokyo, Shanghai, Ho Chi Minh City, UTC, London, Paris, New York, Los Angeles, and Sydney. You can add or remove cities freely, toggle between 12-hour and 24-hour formats, and your selections are saved locally in your browser. Because everything runs client-side with no server involved, your data never leaves your device — making it safe to use even on sensitive work schedules.
How to use
- Select a city from the dropdown at the top of the page.
- Click '＋ Add' to add it as a clock card.
- Watch the live time update every second on each card.
- Toggle 12-hour / 24-hour format with the button on the right.
- Click the trash icon on any card to remove that timezone.
FAQ
- Is this world clock free to use?
- Yes, completely free with no account or payment required.
- Does it upload my data to a server?
- No. Everything runs in your browser. No data is ever sent to any server.
- Does it work offline?
- Yes. Once the page has loaded, the clock continues to run even without an internet connection.
- Which timezones are supported?
- Seoul, Ho Chi Minh City, Tokyo, Shanghai, UTC, London, Paris, New York, Los Angeles, and Sydney — 10 cities in total.
- Are my selected cities saved between visits?
- Yes. Your city selections and 12/24-hour preference are saved in your browser's localStorage and restored automatically.