World Clock — Free Online Tool
View live clocks for any combination of cities across all major timezones. Choose from 35+ cities covering all regions. Clocks update every second. Uses your local system clock — no network requests needed.
100% client-side. No uploads. Your data never leaves your browser.
How to use World Clock
- Default cities cover major global hubs — adjust using the city selector.
- Add or remove cities using the dropdown.
- Watch all clocks update live every second.
- Use as a meeting planner by looking at all times simultaneously.
Frequently Asked Questions
Does this make network requests to get the time?
No. Times are derived from your local system clock using the Intl.DateTimeFormat API with IANA timezone conversions.
How many cities are available?
35+ cities across all major regions: Americas, Europe, Middle East, Asia, Pacific, and Africa.
Can I plan a meeting across timezones?
Yes. With all relevant cities added, you can see the same moment displayed in each timezone simultaneously.
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