Free online 20 minute timer
A 20 minute timer that shows your real focus
20 minutes — power-nap length, sprint length, "I'll just do one round" length. TimerDuel adds a chess-clock so even a quick 20 minute block tells you how much was real focus.
When 20 minutes is the right length
- • Power nap. Long enough to refresh, short enough to skip sleep inertia.
- • Mini-Pomodoro. Lower commitment than 25, same structure.
- • Workout round. One real 20-minute set, no phone-scrolling.
- • Reading sprint. One chapter, real attention.
FAQ
What is a 20 minute timer good for?
Short study sessions, focused work sprints, naps (the classic 'power nap'), workout circuits, and cooking. 20 minutes is just under the Pomodoro length and great for low-friction starts.
Is this 20 minute timer free?
Yes — completely free, no signup, no install. Open it in any browser.
Can I use it for a power nap?
Yes. 20 minutes is the sweet spot — long enough to refresh, short enough to avoid sleep inertia. Set the timer, lie down, close your eyes.
Does it work on mobile?
Yes — desktop, tablet, and phone. The page IS the timer.
How is this different from a normal 20 minute countdown?
Normal timers count down. TimerDuel runs two clocks — focus vs. break — so at the end you see how much of those 20 minutes was real focus.
Open the 20 minute timer
Free, no signup, runs in your browser.
Start now