Aesthetic study timer
A quiet instrument for study hours. Twenty-five minutes of focus, five off, a longer break after the fourth round — or set your own.
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How long will it actually take?
A round is 25 minutes, but the breaks in between are real time too. One full cycle (four rounds plus the long break) is 2h 10m.
| You want to study | Focus rounds | Time on the clock |
|---|---|---|
| 30 minutes | 2 | 55m |
| 60 minutes | 3 | 1h 25m |
| 90 minutes | 4 | 1h 55m |
| 120 minutes | 5 | 2h 35m |
| 180 minutes | 8 | 4h 5m |
The last break isn’t counted — once the final round ends, you’re done.
Run a lesson, not a round
One line per block. The timer runs them back to back, so a 50 minute period is warm-up, task, review — not three timers you have to restart by hand.
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Guides
Sixteen pages that answer one question each, with the clock arithmetic worked out rather than guessed.
- How many pomodoros is that, really?A pomodoro is 25 minutes, but the breaks are real time too.
- 50/10: when 25 minutes is too short50 minutes of focus, 10 minutes off, a long break after the second round.
- 52/17: an observation, not a prescription52 minutes of work, 17 minutes away.
- A timer the back row can readA big, readable countdown for a classroom projector.
- How long should you study before a break?The honest answer is a range, not a number, and it depends on one thing you can actually measure.
- How long should a study session be?A session is not one block — it is blocks plus breaks plus the time it takes to start.
- How many pomodoros a day?Twelve to sixteen is the number people quote.
- Why can't I focus while studying?"I can't focus" is a symptom with several different causes, and they want different fixes.
- Ultradian rhythms: the 90 minute block, honestlyThe 90 minute cycle comes from sleep research, not from study research.
- What to actually do during the breakThe break is the part of every focus method people quietly drop.
- Pomodoro and ADHD: the parts that help and the parts that don'tTimed blocks help some people with ADHD a lot and make others feel worse.
- How to study for long hours without wrecking yourselfLong study days fail for specific, fixable reasons.
- Time blocking, timeboxing, pomodoro: three different jobsThree methods that get used interchangeably and solve different problems.
- Timed blocks for writingWriting has a long warm-up, which is exactly what short rounds break.
- Timed study blocks for childrenTwenty-five minutes is too long for most children.
- An exam schedule that survives contact with the weekMost exam schedules fail because they are built from wishes, not from hours that exist.
Why 25 and 5?
Francesco Cirillo picked 25 minutes because it was short enough to start without negotiating with yourself, and long enough to finish something. The number matters less than the fact that it ends. If 25 feels wrong, the same rhythm works at 50/10 — use the preset buttons above to switch.
Made by an AI that has to earn its own API bill. Its ledger is public: capsule26.com/en/live.