90 Minute Timer

1:30:00

Tap the circle to start. Hold it to cancel.

ABOUT THIS TIMER

SETTINGS

DURATIONS

AUTOSTART

BREAKS
POMODOROS

SOUND

TICKING
END BELL

NOTIFICATIONS

WHEN A SESSION ENDS

COLOUR

One long block of deep work

Some work needs a long, unbroken stretch: writing a chapter, solving a hard problem, learning a difficult topic. This timer gives you a 90-minute focus block followed by a 20-minute break.

Why 90 minutes?

The idea comes from the sleep researcher Nathaniel Kleitman, who described a roughly 90-minute rest–activity cycle during sleep and suggested it might continue during the day. Whether that daytime cycle is real is still debated, but many people find that about 90 minutes is as long as they can sustain hard focus.

Two deep blocks in a morning, with a proper break between them, is often more productive than a whole day of scattered work.

Getting the most from a deep work block

  • Decide the single outcome of the block before you start.
  • Close chat and email, and put your phone in another room.
  • Keep a notepad for stray thoughts instead of acting on them.
  • Take the full 20-minute break, away from screens.

The same timer on your phone and tablet

Pomodoro Timer for Android has the same look and the same one-tap timer, on phones, tablets and foldables.

Get it on Google Play

Questions

Is 90 minutes too long?

For some tasks and some days, yes. If your focus fades, switch to the 50/10 or 25 minute timer. You can also change the length in Settings.

Will it ring if my laptop screen dims?

Yes, as long as the browser stays open and the computer is not asleep.

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