Does the timer keep running in another tab?
Yes, while the page stays open. Browsers may slow background updates, so the display catches up when you return.
Time / Focus
Set a duration, start the countdown and enter fullscreen when you need a clear screen. The timer keeps time in the page and tries to keep your screen awake.
Set the duration
Fullscreen hides the site header, footer and page title. Press Esc to leave.
FullscreenFullscreen hides the site header, footer and page title. Press Esc to leave.
Yes, while the page stays open. Browsers may slow background updates, so the display catches up when you return.
The timer requests a screen wake lock when the browser supports it. Browser and battery rules still apply.
After the first visit, the page can be cached by the service worker and reopened without a network connection.