Time Blocking and Pomodoro: How to Plan a Working Day
Time blocking decides what to work on, Pomodoro decides how. A daily setup: blocks in your calendar, pomodoros inside them, and a plan for when it slips.
They aren’t rivals: time blocking decides what you’ll be doing at 10 a.m., and Pomodoro keeps you on it once 10 a.m. arrives. Put your tasks into blocks in the calendar, and work inside each block in pomodoros.
What time blocking is
Every hour of the working day gets a job in advance. Not “today: report, code review, email”, but “9:30 to 11:30 — report; from 2:30 — review”. Cal Newport made the method popular: he’s written about it on his blog since 2013 as planning every minute of your workday, then covered it at length in Deep Work (2016) and turned it into a paper planner, The Time-Block Planner (2020).
The difference from a to-do list is simple. A list says what to do but not when. A block makes you answer honestly whether it all fits in the day. It usually doesn’t — and you’d rather find out at nine in the morning than at six in the evening.
What each method is missing
Blocks are weak inside the hour. You set aside two hours for the report, and ten minutes in you’re in your inbox: a calendar doesn’t stop you drifting, it just reminds you what you meant to do.
Pomodoros have the opposite problem. The timer holds your attention but doesn’t say where to point it. The morning goes by in honest pomodoros, and by lunch it turns out the main thing hasn’t been touched: “I worked all day — on what, exactly?” Together, each method covers the other’s gap.
An engineer’s day, blocked out
Here’s a 9-to-6 day. The times are only an example — swap in your own.
| Time | Block | Inside the block |
|---|---|---|
| 09:00–09:30 | Email, chat, plan the day | no timer |
| 09:30–11:30 | Deep work: the main task | 4 Classic pomodoros or 2 Deep Focus |
| 11:30–12:00 | Buffer | long break, loose ends |
| 12:00–13:00 | Lunch | — |
| 13:00–14:30 | Meetings | no pomodoros |
| 14:30–16:30 | Deep work: second task | 4 Classic pomodoros |
| 16:30–17:30 | Small stuff: reviews, replies | 2 Classic pomodoros |
| 17:30–18:00 | Buffer and tomorrow’s plan | no timer |
Don’t slice meetings into pomodoros: a meeting already has a start and an end, and a timer going off mid-conversation only gets in the way. On Classic that’s ten pomodoros — a little over four hours of focused work. That’s a good day, not a baseline.
Slicing a block into pomodoros
A block’s length is its pomodoros plus the breaks between them. Two hours on Classic: four 25-minute pomodoros and three 5-minute breaks come to an hour and fifty-five minutes. On Deep Focus it’s two 50-minute pomodoros with ten minutes in between — an hour fifty.
Put the long break where two blocks meet: the cycle ends, you get up, walk around, and the next block starts with a fresh head. If a block is under an hour, don’t try to squeeze a full cycle into it — one or two pomodoros will do. If a block is long and the work is heavy, take a look at longer rhythms.
When the day slips
It will, and that’s fine. There’s one rule for replanning: move blocks, don’t shrink pomodoros. A meeting ran forty minutes over — cross one pomodoro off the next block, not your lunch and not your breaks. Fifteen-minute pomodoros instead of twenty-five “to fit everything in” produce rush, not work.
A block that fell apart is data, not failure. If meetings eat your deep-work block three days in a row, it isn’t your discipline — the block is at the wrong time. Move it to the morning, or mark it busy in your calendar so no one can book over it.
Buffers and small stuff
Small tasks — reply, approve, forward — don’t each deserve a block, but they mustn’t leak into deep work either. Batch them into a “clear the deck” block twice a day: once in the morning, once late afternoon. Check notifications and chat between pomodoros, on the short break — then twenty-five minutes of silence isn’t scary.
Leave empty half-hour buffers. A plan with no slack breaks at the first meeting that runs long; a plan with slack just shifts.
Start tomorrow
- Write down three main tasks for tomorrow the evening before — three, not ten.
- Put two deep-work blocks in your calendar, preferably in the morning.
- Pick a rhythm that fits the block length and count how many pomodoros it gives you.
- Review in the evening: which block held, which got eaten, and why. Adjust the next day’s plan.
If you’re not sure what deserves blocks outside of work, the wheel of life can help: the part on turning the wheel into goals shows how a chosen area becomes one weekly action with its own block in your calendar.
In the app
In Pomodoro, set your Daily goal to the total pomodoros across your blocks — ten in the example above. Today shows how many are done, and days where you hit the goal turn green in Last 14 Days. Choose a rhythm to fit the block: Classic 25/5/15 or Deep Focus 50/10/20; durations go from 1 to 180 minutes. Deep Focus gives you the long break after three pomodoros, so with two per block, set Long break after N sessions to 2 — then it lands where the blocks meet. Start breaks automatically saves you a click inside the block.
To be clear: the app has no tasks, projects or calendar. The plan lives in your calendar; the app just keeps time.
If you’re not sure which rhythm suits your blocks, see choosing a rhythm. And if other people’s questions keep breaking your blocks, read about distractions and interruptions.