20 Minute Timer
Free online 20-minute focus timer. No signup required.
20:00Ready
About the 20-Minute Timer
A 20 minute timer is the break duration used in the 90-Minute Work Cycle, one of the most effective focus techniques for deep work. Research on ultradian rhythms shows your brain naturally cycles between 90 minutes of high alertness and 20 minutes of rest. A 20-minute break gives your brain genuine recovery time — enough for a short walk, a snack, or a quick meditation session.
Best for
90-minute cycle breaks, meditation, moderate study sessions
Tips for Your 20-Minute Session
- Pair with 90-minute work sessions for the ultimate deep work cycle
- 20 minutes is the ideal length for a power nap if you're studying all day
- Use the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds
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