World Clock
Compare the current time across any cities and time zones, live — or switch to a custom date and time to see how one specific moment lands everywhere else.
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How to use the world clock
- Your own time zone is shown first.
- Choose a city or time zone and click Add for each place you want to see.
- Tick Use a custom time to see how one particular moment lands everywhere.
About this tool
The first clock is your own time zone, read automatically from your browser (no location permission needed). By default every clock ticks live, each reading the same instant in its own IANA time zone via the Intl API — daylight saving transitions are handled automatically and correctly for each zone on its own schedule, so two zones that are 8 hours apart in January might be 7 or 9 hours apart in July. Turn on "Use a custom time" to freeze all the clocks on one specific date and time instead — handy for planning something at a set moment, like a call or a release, and seeing what it looks like in every other zone in the list. The zone list comes from your browser's time zone database, so it's always current.
Nothing entered here is sent to a server — the entire tool runs as JavaScript in your browser tab.
Questions about world time
What time is it around the world now?
Add the cities you care about and each clock shows its current time, ticking live.
How do I find a good time for a call across time zones?
Turn on the custom time, set a proposed time in your own zone and check that it lands in working hours everywhere else.
Does it handle daylight saving?
Yes. Each zone follows its own daylight saving rules, so the gaps between cities are right for the date shown.
Where does the list of time zones come from?
Your browser’s built-in time zone database, the same one your device uses, so it stays up to date.