Can I switch to 24-hour time?

Yes. Use the time format setting to switch between 12-hour and 24-hour formats.

Does this support time zones?

Yes. Choose a time zone to display the clock for a different region.

Is there a world clock?

Yes. Use the world clock to track multiple cities at once.

Can I show a clock in full screen?

Yes. Full-screen mode is available on supported devices and browsers.

Online digital clock

A minimal online digital clock with large, readable digits.

By Rafael Torres · Time Zones & Clocks•Reviewed by Avery Brooks•Updated Feb 14, 2026

What is the online clock?

The online clock shows the current time (hours, minutes, and seconds) right in your browser tab. You can switch between display styles such as digital, analog, and flip-style layouts.

By default it shows the time for your current location. To compare time across regions, use the world clock or open a city time page.

How do I use the online clock?

Choose a display style: digital, analog, or flip.
Use full-screen mode to show the clock during meetings or in a classroom (press Esc to exit).

You can also set an alarm, start a stopwatch, or run a timer when you need more than just the current time.

Embed

If you want to display an online clock on another website, you can use the embed section on this page to copy an iframe snippet. Choose a size, copy the code, and paste it into your site’s HTML or page builder.

Embedded clocks are great for dashboards, livestream overlays, and classroom pages where you want a shared reference time.

Clock settings

Customize the clock to match your setup:

Change the time zone.
Toggle dark mode and switch between 12-hour and 24-hour formats.
Show or hide seconds and the date.
Enable mirror mode for recording or reflective displays.
Show the day of week and week number.
Adjust the clock size for readability.

Your options are saved in your browser so they’ll be remembered next time.

Why use an online clock?

A browser-based clock is useful when you need a shared reference time on-screen:

Show precise time when seconds matter
Display a full-screen clock on a projector or second monitor
Help students track time during tests and timed activities

FAQ

Can I switch to 24-hour time?: Yes. Use the time format setting to switch between 12-hour and 24-hour formats.
Does this support time zones?: Yes. Choose a time zone to display the clock for a different region.
Is there a world clock?: Yes. Use the world clock to track multiple cities at once.
Can I show a clock in full screen?: Yes. Full-screen mode is available on supported devices and browsers.

Authorship

See the full team

Primary author

Rafael Torres

Time Zones & Clocks

World clocks, time zone correctness, and “what time is it in…” pages for remote teams.

Works on clock and world-time experiences, with particular attention to time zone correctness, DST edge cases, and fast scanning across multiple cities.

Editorial review

Avery Brooks

Product & Performance Timing

Stopwatches, split/lap timing, and full-screen timing for training.

Builds and tests stopwatch and timer interactions with an emphasis on reliability, large-format readability, and responsive controls.

Also on the team: Mina Chen · Classroom & Study Timers, Priya Nair · Date & Time Calculations.