# Flip Clock AI

> Flip Clock AI is a free online flip clock that runs entirely in your browser, with a timer, stopwatch, pomodoro timer and world clock.

Flip Clock AI (flipclockai.com) is an independent web app for displaying the time on any screen; it is not a physical clock brand, it is not affiliated with hardware makers or other clock apps of a similar name, and it reports the local device time rather than a photo or wallpaper.

Last updated: 2026-10-28

## Facts

- 16 skins, 12 accent colors and 11 preset backgrounds, plus a custom image option
- 5 alarm sounds generated with the Web Audio API: Chime, Beep, Arp, Bell, Pulse
- Timer presets of 5, 10, 15, 25, 30, 45 and 60 minutes; deep links accept 1–999 minutes
- Pomodoro defaults of 25/5/15 minutes, adjustable to 1–180 focus, 1–60 short and 1–90 long break
- World clock pins up to 12 cities with a 9:00–18:00 business-hours view and no geolocation
- Fullscreen sessions hold an automatic screen wake lock; pages work offline after the first visit

## Pages

- [Flip Clock — free online flip clock](https://flipclockai.com/): Free flip clock online with seconds, 12/24h, retro skins and fullscreen. Runs in your browser, no account needed.
- [Flip clock timer](https://flipclockai.com/timer/): Free online timer and countdown clock with retro flip display, presets, custom hours, minutes, seconds, and alarm sound. Runs in background tabs.
- [Flip clock stopwatch](https://flipclockai.com/stopwatch/): Free online stopwatch with retro flip clock display, laps, split times, best and worst marks, and CSV export. Accurate in background tabs.
- [Pomodoro flip clock](https://flipclockai.com/pomodoro/): Pomodoro flip clock with adjustable focus and break lengths, auto start and daily count. Free, no account needed.
- [Flip world clock](https://flipclockai.com/world-clock/): Flip world clock with seconds, pinned cities, daylight saving support, day planner and shareable links.
- [Aesthetic skins](https://flipclockai.com/aesthetic/): Change your flip clock style with retro skins, accent colors and backgrounds. Settings save on this device.
- [About Flip Clock AI](https://flipclockai.com/about/): What Flip Clock AI is, how it runs in your browser, and which tools are included.
- [How Flip Clock AI works](https://flipclockai.com/about/how-it-works/): How Flip Clock AI keeps time: your device clock, browser time-zone data, Web Audio alarms and offline caching, with links to the standards.
- [Changelog](https://flipclockai.com/changelog/): Every change to Flip Clock AI, generated from the project's git commit history with real dates, newest first.
- [Contact](https://flipclockai.com/contact/): Report a bug or request a feature for the free online flip clock.
- [Privacy policy](https://flipclockai.com/privacy-policy/): How Flip Clock AI handles settings, storage, notifications and local data.
- [Terms of use](https://flipclockai.com/terms/): Terms for using the free online flip clock, timer, stopwatch and related tools.

## Guides

- [All flip clock guides](https://flipclockai.com/guides/): Step-by-step flip clock guides: screensaver mode on Mac, Windows setup, OBS overlays, time zone scheduling, and how flip clocks actually work.
- [What Is a Flip Clock? History and How It Works Today](https://flipclockai.com/guides/what-is-a-flip-clock/): What a flip clock is, how split-flap digits work, and why the retro format survives online. Test it instantly in your browser, free.
- [How to Use a Flip Clock as a Screensaver on Mac](https://flipclockai.com/guides/flip-clock-screensaver-mac/): Run Flip Clock AI fullscreen as a Mac screensaver alternative: skins, staying awake, and installing it as an app from your browser.
- [How to Set Up a Flip Clock on Windows 10 and 11](https://flipclockai.com/guides/flip-clock-windows/): Set up a free flip clock on Windows 10 or 11: fullscreen mode, install as an app from Edge or Chrome, taskbar pinning and skin picks.
- [How to Add a Flip Clock to OBS as a Stream Overlay](https://flipclockai.com/guides/flip-clock-obs-stream-overlay/): Add a flip clock to OBS with window capture or a browser source. The clock runs live in your stream, no capture card needed.
- [How to Find a Meeting Time Across Time Zones](https://flipclockai.com/guides/find-meeting-time-across-time-zones/): Find a meeting time across time zones with a day planner, business-hours overlap and DST-safe share links. Works free in your browser.

## Frequently asked questions

- [Flip clock FAQ](https://flipclockai.com/): every question below is answered on the home page.
- [What do you call a clock where the numbers flip?](https://flipclockai.com/)
- [Is there a flip clock with seconds?](https://flipclockai.com/)
- [How do I get a retro flip clock screensaver on Mac?](https://flipclockai.com/)
- [How do I install a flip clock on Mac?](https://flipclockai.com/)
- [How do I add a flip clock to Windows?](https://flipclockai.com/)
- [Does the flip clock work on MacBook Air and MacBook Pro?](https://flipclockai.com/)
- [Can I use the flip clock on a second monitor or TV?](https://flipclockai.com/)
- [Does it work on phones and tablets?](https://flipclockai.com/)
- [Can I keep the clock open in a browser tab?](https://flipclockai.com/)
- [How do I make the flip clock full screen?](https://flipclockai.com/)
- [How do I stop my screen from turning off?](https://flipclockai.com/)
- [Can I change the size of the digits?](https://flipclockai.com/)
- [Can I install the flip clock as an app?](https://flipclockai.com/)
- [Is this the same as a Twemco flip clock, and where can I buy one?](https://flipclockai.com/)
- [When was the flip clock invented?](https://flipclockai.com/)
- [Is Flip Clock AI free, and do I need an account?](https://flipclockai.com/)
- [Does it work offline?](https://flipclockai.com/)
- [Does it store my data?](https://flipclockai.com/)
- [Can I switch to 24-hour time?](https://flipclockai.com/)
- [Flip clock timer FAQ](https://flipclockai.com/timer/):
- [How do I set a flip clock timer?](https://flipclockai.com/timer/)
- [Does the timer keep running if I switch tabs?](https://flipclockai.com/timer/)
- [Will the alarm sound in a muted tab?](https://flipclockai.com/timer/)
- [Can the timer play a sound when it ends?](https://flipclockai.com/timer/)
- [Can I link directly to a 25 minute timer?](https://flipclockai.com/timer/)
- [Flip clock stopwatch FAQ](https://flipclockai.com/stopwatch/):
- [How do I record laps on the flip stopwatch?](https://flipclockai.com/stopwatch/)
- [Is the stopwatch accurate in a background tab?](https://flipclockai.com/stopwatch/)
- [Can I export lap times?](https://flipclockai.com/stopwatch/)
- [Can I show milliseconds on the stopwatch?](https://flipclockai.com/stopwatch/)
- [Pomodoro flip clock FAQ](https://flipclockai.com/pomodoro/):
- [What is the Pomodoro technique?](https://flipclockai.com/pomodoro/)
- [What is a pomodoro timer used for?](https://flipclockai.com/pomodoro/)
- [Can I change the focus and break lengths?](https://flipclockai.com/pomodoro/)
- [Does the next session start automatically?](https://flipclockai.com/pomodoro/)
- [Are my pomodoro sessions saved?](https://flipclockai.com/pomodoro/)
- [World clock FAQ](https://flipclockai.com/world-clock/):
- [How do I add a city to the world clock?](https://flipclockai.com/world-clock/)
- [Does the world clock use my location?](https://flipclockai.com/world-clock/)
- [Does the world clock handle daylight saving time?](https://flipclockai.com/world-clock/)
- [How do I share my list of cities?](https://flipclockai.com/world-clock/)
- [Can I use the world clock offline?](https://flipclockai.com/world-clock/)
- [How many cities can I pin?](https://flipclockai.com/world-clock/)
- [How do I find a meeting time across time zones?](https://flipclockai.com/world-clock/)
- [Aesthetic gallery FAQ](https://flipclockai.com/aesthetic/):
- [How do I change the flip clock style?](https://flipclockai.com/aesthetic/)
- [Which flip clock skins are available?](https://flipclockai.com/aesthetic/)
- [Can I use my own background image?](https://flipclockai.com/aesthetic/)
- [Are my settings saved?](https://flipclockai.com/aesthetic/)

## Contact

Email hello@flipclockai.com for bug reports and feature requests.