Pomodoro Timer

Alternate focus sessions with short breaks and take a longer break after every fourth session.

Calculations happen locally. We do not send your values to our server.

Example

With 25 minutes of focus, 5-minute short breaks and a 15-minute long break, the first four sessions and their breaks take 130 minutes, of which 100 minutes are focused work.

Calculation method

After each focus session the timer switches to a short break, and after every fourth completed focus session it selects the long break instead. The label shows the current mode and session number, and the countdown works from your device clock so it stays accurate in a background tab.

Important notes

Session lengths are productivity preferences, not health guidance. The sound at the end of an interval needs the tab open and audible, so keep it visible if you rely on the change of mode rather than watching the clock.

How the cycle runs

Set the focus length and the short and long breaks, then start. After each focus session the timer switches to a short break, and after every fourth completed focus session it switches to the long break instead. With the classic 25 minutes of focus, 5-minute short breaks and a 15-minute long break, the first four sessions and their breaks take 130 minutes, of which 100 minutes are focused work. The label shows the current mode and session number.

Choosing lengths that suit the work

The technique, developed by Francesco Cirillo, uses short blocks to make starting easier and breaks to keep attention fresh. Twenty-five minutes is a starting point, not a rule. Deep work such as writing or programming often suits 50-minute sessions with 10-minute breaks and a 30-minute long break, a 260-minute cycle with 200 minutes of focus. A full 8-hour day of 25-plus-5 blocks contains 16 focus sessions, before accounting for long breaks, meetings or lunch.

Skipping, pausing and staying on track

Skip moves straight to the next focus or break when you finish early or need to adjust, and Pause keeps the remaining time if you are interrupted. Use breaks to stand, rest your eyes or drink water rather than switching to another task. Like the Online Timer, the countdown uses the device clock, so it stays accurate in a background tab, but the end sound needs the tab to be open and audible. Session lengths are productivity preferences, not health guidance.

Worked examples
InputResult
25 · 5 · 15 · first 4 sessions130 min · 100 min focus
50 · 10 · 30 · first 4 sessions260 min · 200 min focus
25 · 5 · 15 · focus after session 4long break
25 · 5 · 15 · focus after session 3short break
8 hours of 25 + 5 blocks16 focus sessions

Frequently asked questions

Why 25 minutes, and can I change it?

The technique, developed by Francesco Cirillo, uses short blocks to make starting easier and breaks to keep attention fresh. Twenty-five minutes is a starting point, not a rule: deep work such as writing or programming often suits 50-minute sessions with 10-minute breaks and a 30-minute long break, a 260-minute cycle with 200 minutes of focus.

How many sessions fit in a working day?

A full 8-hour day of 25-plus-5 blocks contains 16 focus sessions before you account for long breaks, meetings or lunch, which is why planning every hour as focused work rarely survives contact with a real day. Counting the sessions you actually complete is a better measure than hours at the desk.

What do Skip and Pause do?

Skip moves straight to the next focus or break, which helps when you finish early or need to realign with a meeting. Pause keeps the remaining time if you are interrupted. Use breaks to stand, rest your eyes or drink water rather than switching to another screen task.

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