Twenty-two minutes is a slightly long meeting slice, useful when the agenda is one decision and not a tour. For practice, it holds a full run of a short routine plus notes after.
If the alarm surprises people, you started it in secret. Say what the twenty-two minutes are for. Press space to start or pause, R to reset, and F for fullscreen. The screen can stay awake after you start, using the wake lock your browser allows. Pick the alarm before you begin. A bell, a chime, a beep, or a short digital pulse all come from the Web Audio API, so there is no sound file to wait on.
This page is the 22 minutes countdown and nothing else is running underneath it. Related lengths are linked under the guide if you want a neighbor, and the timer itself stays above the fold.
Questions
How do I run a 22 minutes timer on a projector?
Press start, then F or the fullscreen button. Classroom mode hides the writing so the digits fill the wall. If the alarm surprises people, you started it in secret. Say what the twenty-two minutes are for.
What is 22 minutes actually good for?
Twenty-two minutes is a slightly long meeting slice, useful when the agenda is one decision and not a tour.
Will the countdown drift if I switch tabs?
No. The end is a timestamp. The display is the gap between that timestamp and now, so a background tab does not lose seconds the way a ticking counter would.