Study timer: plan sessions that match the work
Match the session to the task: 25 minutes for memorising and admin, 45 to 50 minutes for problem sets and essays, and full exam length for past papers. Take a short break after each block and a longer one every 90 to 120 minutes.
Free tool: Start a study session →
Start now: 25 min revise45 min study10 min break1 h past paper2 h exam
Choose the session length by the type of task
The common mistake is using one session length for everything. Flashcards and a long essay ask very different things of your attention. Use this as a guide, then adjust after a week.
Why not just keep going? Focus fades after a stretch of hard work, and about 90 minutes is the most anyone should study without a proper break. The reasons, and what to do in the break, are in how long you should study without a break.
| Task | Session | Break | Why |
|---|---|---|---|
| Flashcards and vocabulary | 20 to 25 min | 5 min | Repetitive; short blocks keep recall sharp |
| Reading and note-taking | 30 to 40 min | 5 to 10 min | Long enough to get through a section |
| Maths and science problem sets | 45 to 50 min | 10 min | Problems need warm-up time |
| Essay writing | 50 to 60 min | 10 to 15 min | Ideas take a while to build momentum |
| Past papers | Real exam length | 15 to 20 min | Practises stamina and pacing |
| Review of mistakes | 15 to 20 min | 5 min | Short and focused right after marking |
A sample 2-hour study plan
Good for an after-school or evening session with one or two subjects.
| Time | Block | What to do |
|---|---|---|
| 0:00 to 0:25 | Study | Flashcards or quick recall of last session |
| 0:25 to 0:30 | Break | Stand up, water |
| 0:30 to 1:15 | Study | Main task: problem set or essay section |
| 1:15 to 1:25 | Break | Away from the desk |
| 1:25 to 1:50 | Study | Second subject or continue main task |
| 1:50 to 2:00 | Review | Write what you did and the first task for next time |
A sample 4-hour study day
For weekends and revision periods. Four hours of genuine focus is a lot; the breaks are part of the plan, not a reward.
| Time | Block | Suggested content |
|---|---|---|
| 0:00 to 0:50 | Deep block 1 | Hardest subject first |
| 0:50 to 1:00 | Break | Short walk |
| 1:00 to 1:50 | Deep block 2 | Same subject, practice questions |
| 1:50 to 2:20 | Long break | Eat something, no screens |
| 2:20 to 2:45 | Light block | Flashcards for a second subject |
| 2:45 to 2:50 | Break | - |
| 2:50 to 3:40 | Deep block 3 | Past paper section under timed conditions |
| 3:40 to 4:00 | Review | Mark it and note mistakes |
The 50 minute blocks work well with a 45 minute timer plus a short wrap-up, or set 50 minutes in the Pomodoro timer.
Practising exams under timed conditions
Knowing the material and finishing a paper in time are separate skills. Once a week, sit a past paper or a section of one under real conditions.
- Open exam mode and set the exact paper length. It shows a large, calm countdown with the finish time.
- Put your phone in another room. Close other tabs.
- Divide the time by marks: a 100 mark, 2 hour paper gives about 1.2 minutes per mark. Write checkpoints on the paper.
- Leave 5 to 10 minutes at the end for checking.
- Afterwards, use a 15 to 20 minute block to review every lost mark.
Keeping a task list inside the timer
The Pomodoro timer has a task list that counts pomodoros per task. Write the session's tasks before you start, for example "Chemistry Q1 to Q10" and "History essay plan". Seeing that an essay plan took four rounds rather than the two you expected helps you plan the next week realistically.
The list is saved only in your browser on that device. There is no account, so a shared family computer will show the same list to anyone using that browser.
Breaks, sound and homework time
- Spaced breaks: a short break after every block and a longer break every 90 to 120 minutes.
- Background sound: rain, cafe or brown noise from ambient sounds can mask household noise. Silence is fine too; try both.
- Younger students: shorter blocks of 15 to 20 minutes. See how long homework should take for rough guidance by age.
- Group study: use the study timers collection and agree the block length before you start.
Frequently asked questions
What is the best study timer length?
There is no single best length. Around 25 minutes suits memorising, 45 to 50 minutes suits problem solving and writing, and past papers should match the real exam length.
How many hours a day should I study?
It depends on age and goals. For most students, three to four hours of focused study in a day is a lot; quality drops quickly beyond that without long breaks.
Can I see the time I will finish?
Yes. Countdowns show the clock time they end at, and exam mode displays the finish time on screen.
Do I need an account to save my study tasks?
No. Tasks and pomodoro counts are saved in your browser only, with no sign-up.
Should I listen to music while studying?
Some people focus better with steady background sound, others with silence. Lyrics tend to compete with reading and writing, so ambient noise is a safer choice if you want sound.