Online Clock Screensaver FAQ
Find clear answers about using the online flip clock, fullscreen clock, countdown timer, TV casting, device compatibility, privacy, and 12 or 24 hour display settings.
What is a clock screensaver and how do I use it?+
A clock screensaver is a full-screen digital clock that runs in your browser. Open clockscreensaver.org, click Start fullscreen screensaver and the clock takes over the display. Press Esc to exit.
Is this really a free online clock screensaver?+
Yes. There is no signup, no download and no watermark. The site is 100% free to use on any device with a modern browser.
Does the free online clock screensaver work offline?+
Once the page has loaded, the clock keeps ticking without an internet connection because it reads your device's system time locally.
Which devices are supported?+
Any device with a modern browser: Windows and Mac desktops, iPad, iPhone, Android phones and tablets, Chromebooks and most smart TVs. The layout is fully responsive so the clock looks great on all screen sizes.
Can I use a 24-hour clock format?+
Yes. Use the 12H/24H control in the live clock settings to switch formats at any time.
How do I keep the screen from turning off?+
Disable sleep in your operating system's power settings while the clock screensaver is running. On phones, you can pin the browser or enable a 'Keep screen on' developer option.
Can I cast the clock screensaver to my TV?+
Yes. Use Chromecast's 'Cast tab' feature from Chrome, AirPlay from Safari on macOS/iOS, or open the site directly on a smart TV browser.
Is my time data sent anywhere?+
No. The clock reads your local device time and never transmits it. See our privacy policy for details.
Does the neon dark theme save battery?+
On OLED screens, black pixels are switched off, so a dark clock screensaver draws noticeably less power than a light one.
Can I use the clock for streaming or presentations?+
Absolutely — use it as a starting-soon overlay in OBS, as a big countdown-style clock in classrooms, or as a decorative element on a meeting-room screen.