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20 minute timer
Twenty minutes, loaded and ready. Press start.
Ready
20:00Add or take time off while it runs with the buttons under the clock. The countdown is worked out from the clock, so a tab left in the background comes back correct.
The end sound is generated in your browser, so nothing is downloaded and it works offline.
Space start or pause · R reset · F full screen
No signup · No accounts · Free forever
Activity presets
Twenty minutes is the length most commonly associated with a power nap, short enough to avoid waking up groggy from deep sleep, and it is also a common workout-class segment, a sitcom-length break, or a solid uninterrupted study block. It sits comfortably between a quick task and a full hour of focused work.
The countdown here loads pre-set to twenty minutes, full screen and legible from across a room, with silent mode available if a chime would defeat the point of the nap it is timing. Background tabs stay accurate the whole way through.
Need a different length? The full timer page has quick presets from ten seconds to ten minutes plus a custom field for anything else, and pairs well with charades cards, bingo cards and word searches if you are running a game rather than a work session.
FAQ
Is this timer free?
Yes, completely, no signup, no account and no limit on how many times you run it. Pick it and press start.
Is 20 minutes a good nap length?
It is a commonly recommended length for a short daytime nap, long enough to feel rested without dropping into the deeper sleep stages that tend to leave people groggy when woken from them.
Does it keep correct time in a background tab?
Yes. The countdown is worked out from the clock rather than counted tick by tick, so a tab you switched away from comes back showing the correct time even if the browser paused it while it was hidden.