World Clock
Display the current time across multiple timezones. Add up to 4 clocks and project them on a big screen.
- No timezones found. Try a city name (e.g., Tokyo).
Build Custom Workflow Timers
Chain timers, counters, and prompts into custom routines with voice cues and 30 ready-made templates.
How to Use the World Clock
The World Clock displays the current time in up to four timezones simultaneously. On your first visit, you see your local time and London (a UTC reference). Click "Add Timezone" and search for any city — Tokyo, Sydney, Dubai, New York — to add its clock to the grid.
Each clock shows the time, date, timezone abbreviation, and the hour difference from your local timezone. Click the pencil icon next to a label to rename it — useful for labeling clocks as "Office," "Client," or "Home."
Toggle between 12-hour and 24-hour format with the format button. You can also show or hide seconds. All your preferences and timezone selections are saved automatically in your browser.
What Is a World Clock?
A world clock displays the current time in multiple timezones at once. Before digital tools, businesses and trading floors hung rows of analog clocks on the wall, each labeled with a city name — New York, London, Tokyo, Hong Kong. The concept dates back to the telegraph era, when global communication first made it essential to know what time it was on the other side of the world.
Today, digital world clocks are used in offices, classrooms,
control rooms, and home offices. This version uses your
browser's built-in timezone data (the
Intl API), so it works offline and requires no
external services.
Common Uses
Conference Rooms and Offices
Display clocks for your team's key locations on a conference room screen. Enter projector mode for a clean, full-screen display that is easy to read from across the room. The clocks update every second with no screen burn-in risk.
Classrooms
Teachers can project multiple timezone clocks during geography or social studies lessons. Students see the real time difference between cities and learn how timezones work by observing the live date-line crossing.
Remote Teams
When your team spans multiple continents, a quick glance at the World Clock tells you whether your colleague in Singapore is still online or if it is the middle of the night. Label clocks with team names or office locations for instant clarity.
Trading and Finance
Financial markets operate in different timezones. Display clocks for New York (NYSE), London (LSE), Tokyo (TSE), and Hong Kong (HKEX) to track market open and close times at a glance.
Web vs App
| What You Need | Free Web Timer | Cronologix App |
|---|---|---|
| Quick timer for one task | Yes | Yes |
| Voice telling you what's next | Basic (browser TTS) | Yes — TTS + premium voices |
| Vibration on each count | No | Yes — haptic patterns |
| Chain timers into a full routine | No | Yes — visual block builder |
| Timer on your lock screen | No | Yes — Live Activities (iOS) |
| Keep timing while you browse | No | Yes — background execution |
| 30 ready-made routines | No | Yes — fitness, focus, breathing |
| Save and reuse your timers | No | Yes — 2 free, unlimited with Pro |
| Send routines to friends | No | Yes — QR code or file |
| See how each run went | No | Yes — stats & step breakdown |
| See your progress over weeks | No | Yes — run history (Pro) |
| Keep routines across devices | No | Yes — Google Drive sync (Pro) |
Frequently Asked Questions
- How many timezones can I display?
- You can display up to 4 timezone clocks simultaneously. The layout automatically adjusts: 2 clocks display side-by-side, 3 in a row, and 4 in a 2×2 grid.
- Does the world clock support projector mode?
- Yes. Click the Projector button or press F to enter full-screen projector mode. All your timezone clocks are displayed in a large, easy-to-read format perfect for classrooms, conference rooms, and offices.
- How do I change the timezone?
- Click the "Add Timezone" button and search for a city name. The search filters through all IANA timezone identifiers. To change an existing zone, remove it and add a new one.
- Is the world clock free?
- Yes, completely free with no sign-up required. Your timezone configuration is saved automatically in your browser's local storage.
- Does the world clock work offline?
- Yes. The clock uses your device's built-in timezone data (the Intl API) and does not require an internet connection after the initial page load.
- Can I use 12-hour or 24-hour format?
- Yes. Use the format toggle to switch between 12-hour (AM/PM) and 24-hour display. You can also show or hide seconds. Both preferences are saved across sessions.