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World Clock

See the live local time in cities around the world at once, updating every second, with 12 or 24-hour display and UTC offsets.

Add a city or region

Clocks update every second in your browser. Nothing leaves your device.

Your clocks

Loading the current time…

How to use the world clock online

  1. Start with the default clocks

    The tool opens with your own zone plus a few major cities, each showing the live local time down to the second.

  2. Add the places you care about

    Type a city or region into the field and press Enter to add its clock. Each place can only be added once.

  3. Choose your display

    Switch between 12 and 24-hour time, and turn the date and UTC offset lines on or off to suit your needs.

  4. Copy or trim the board

    Remove any clock with its cross button, then click Copy all times to export the current board as text.

Why use this tool

Live to the second

Every clock advances once a second so the board always shows the real current time in each place, not a stale snapshot.

Every city your browser knows

Add clocks from the full time zone list, typically 400 or more places, searchable by typing a city or region.

Daylight saving handled for you

Each clock uses the correct seasonal offset automatically, so a city stays right through its spring and autumn changes.

12 or 24-hour, your call

Toggle between a 12-hour clock with AM and PM and a 24-hour clock, and show or hide the date and UTC offset lines.

One-click plain-text export

Copy all times outputs each clock with its time, date, and offset, ready to paste into an email or chat.

Private by design

The clocks are computed in the page from your device clock and time zone data, and nothing is uploaded.

About this tool

This world clock shows the live local time in as many cities as you like, side by side, each ticking once a second. It opens with your own zone and a few major cities, and you can add any place from the time zone list your browser ships, usually more than 400. Each clock reads the current instant and formats it for its zone, so daylight saving transitions are applied automatically and every city stays correct through its seasonal change without any manual adjustment.

It is built for anyone who lives across time zones: coordinating with colleagues, family, or clients in other countries, timing a call so it lands within working hours everywhere, or just keeping an eye on markets and offices abroad. Switch between 12 and 24-hour display, hide the date and offset lines for a cleaner board, and drop any clock you no longer need. The Copy all times button turns the whole board into plain text for a message or a note.

Because the clocks run entirely in your browser, nothing about where you watch or who you work with is sent anywhere. To convert a single specific moment rather than watch the current time, use the time zone converter; to count down to an event in another zone, try the countdown timer; and to translate a raw epoch value from a log or an API, use the Unix timestamp converter.

Frequently asked questions

How does the world clock work?
It reads the current time from your device and formats it for each city you add, refreshing once a second. Add or remove clocks freely, and switch between 12 and 24-hour display at any time.
Which cities and time zones can I add?
All time zones your browser knows about, which is typically 400 or more, covering places from America/New_York to Asia/Kolkata. Start typing a city or region to filter the list, then press Enter to add it.
Does it handle daylight saving time?
Yes. Each clock uses the correct offset for the current date automatically, so a city that has just moved its clocks forward or back still shows the right local time.
Does the time stay accurate if I leave the tab?
Each clock reads the real current time on every update, so when you return to the tab the times are correct rather than drifted. The clocks are only as accurate as your device clock.
Is anything uploaded or stored?
No. The world clock runs entirely in your browser using its built-in time zone data. The cities you add are not uploaded, saved on a server, or logged.

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