Tuttilo

World Clock - Current Time in Cities Worldwide

Track the current time across multiple cities worldwide with our free World Clock. See at a glance what time it is in New York, London, Tokyo, and more.

The clock displays current time for major cities across all inhabited continents, updating every second in real-time. Each city shows its timezone name, current hour in 24-hour format, and date. The interface groups cities by continent for easy scanning of regional times. Add or remove cities using the customization controls to focus on locations relevant to your needs. Everything runs in your browser using your device's system clock and timezone database. The clock continues running accurately even without internet connection after initial page load.

Global customer support teams staff their overnight shifts based on peak hours in key markets displayed on the world clock. Stock market traders watch for exchange opening times in Tokyo, London, and New York to capitalize on market-moving events. Remote workers in different continents check what time it is for colleagues before sending messages or scheduling impromptu calls. International families coordinate video calls with relatives abroad by finding times that work across multiple timezone locations simultaneously.

Set the world clock as your browser's default new tab page to always have instant timezone awareness when opening your browser. Use the 24-hour format to avoid AM/PM confusion when calculating working hours across the international date line. Note which cities are currently in daylight saving time by checking for one-hour shifts from their standard offset. For critical time-sensitive coordination, confirm the other party's actual local time rather than assuming based on their city, as rural areas sometimes differ from major urban centers.

All processing happens directly in your browser. Your files never leave your device β€” no server uploads, no cloud storage, no data retention. The tool works offline once loaded, requires no registration, and is completely free with no usage limits.

Frequently Asked Questions

How many cities can I add?

You can add as many cities as you want from our list of 30+ timezones covering all major cities worldwide.

Does it update automatically?

Yes, all clocks update every second to show the precise current time in each timezone.

What do the colors mean?

Amber/warm backgrounds indicate daytime (6 AM - 8 PM local time) while indigo/cool backgrounds indicate nighttime.