World Clock
View current time across multiple cities and time zones simultaneously.
What is a World Clock?
A world clock displays the current time in multiple cities and time zones at once. It helps you coordinate across regions, plan international meetings, and stay aware of the local time for colleagues, friends, or family in different parts of the world. All times update in real time directly in your browser.
How to Use
- View the default set of major world cities and their current times.
- Click "Add City" and search for any timezone to add it.
- Click the X button on any clock to remove it.
Frequently Asked Questions
Are the times accurate?
Yes, the world clock uses your device's system clock and the Intl API to display accurate local times for each timezone. Times update every second so you always see the current time.
Does it handle daylight saving time?
Absolutely. The browser's Intl.DateTimeFormat API automatically accounts for daylight saving time transitions in each timezone. The UTC offset displayed will also update when clocks change.
Can I add any timezone?
Yes — the tool supports all 400+ IANA timezones. Click "Add City" and search by city name or region. Your selections persist while the page is open.
