20 Minute Timer
Twenty minutes is a full power nap once you account for actually falling asleep first, and it's also a common length for a short run or a from-scratch pasta dinner.
NASA's own research on astronaut naps famously landed on a length close to this for maximum alertness gain without grogginess afterward.
It's already set to 20:00 below — press Space or Start to begin. Reloading mid-countdown resumes it rather than resetting, since it tracks a fixed end time stored on your device, not a server.
What fits in 20 minutes
A rough sense of scale for a 20 minutes block of time:
- A full power nap with time to fall asleep first
- A short jog around the neighborhood
- Cooking pasta from boil to drain
- A Pomodoro focus block plus a stretch
- A guided yoga flow
Frequently asked
- How do I start a 20 minutes timer?
- Type 20 into the timer above, or just use it as-is — it's already set to 20 minutes — then press Space or the Start button.
- Does the timer keep running if I switch tabs?
- Yes — it keeps counting in the background and still chimes when it finishes, even if this tab isn't focused.
- Does it need an internet connection?
- No, once this page has loaded the timer works fully offline.