50 Minute Timer

Fifty on, ten off. The deep-work block that keeps your day on the hour.

25:00

Ready

Nothing selected

Sound Library

Calibrated frequencies for deep work and relaxation.

Color Noises

Continuous frequencies for auditory masking.

White Noise

Constant power across all frequencies. Ideal for masking distracting speech.

FREQUENCY: HIGH

Brown Noise

Deep, bass-heavy rumble reminiscent of a distant waterfall or thunder.

FREQUENCY: LOW

Pink Noise

Balanced spectrum that sounds more natural to the human ear, like steady rain.

FREQUENCY: BALANCED

Red Noise

Even deeper than Brown noise, focusing heavily on the low-end spectrum.

FREQUENCY: LOW

Black Noise

Near-silence with subtle low-frequency drift. Meditative, like the sound of a quiet room at night.

FREQUENCY: NEAR SILENT

Grey Noise

Psychoacoustically equalized to sound equally loud at every frequency.

FREQUENCY: EQUALIZED
Ambient Sounds

Natural soundscapes recorded in high fidelity.

Rain

Gentle rainfall creating a natural, soothing atmosphere perfect for deep concentration.

SOURCE: RECORDED

Rain on Tent

Rainfall on a tent canvas — cozy, immersive and deeply relaxing for focused work.

SOURCE: RECORDED

Ocean Waves

Rhythmic ocean waves rolling onto shore — a timeless natural soundscape for calm focus.

SOURCE: RECORDED

Wind

Steady breeze flowing through open spaces — airy and expansive for clear thinking.

SOURCE: RECORDED

Forest Stream

A gentle brook flowing through a quiet forest — peaceful and grounding for deep work.

SOURCE: RECORDED

Meadow

Birds and insects in a sunlit meadow — warm, organic ambience for relaxed focus.

SOURCE: RECORDED
Binaural Beats

Brainwave entrainment through stereo frequency offset. Layers with any noise above.

Headphones required for binaural effect

Delta

Deep sleep and healing. Ultra-low 2 Hz beat for total relaxation.

BEAT: 2 Hz

Theta

Meditation and creativity. 6 Hz beat for deep introspection and flow.

BEAT: 6 Hz

Alpha

Calm focus and learning. 10 Hz beat for relaxed concentration.

BEAT: 10 Hz

Beta

Active thinking and energy. 14 Hz beat for alertness and problem solving.

BEAT: 14 Hz

The 50/10 cycle

Fifty minutes of work followed by a ten-minute break is the most common alternative to the Pomodoro rhythm, and its main advantage is arithmetic: each cycle is exactly one hour, so blocks line up with the clock and with everyone else’s calendar. Three cycles is a morning. Six is a day.

The ratio is also more generous than 25/5. Ten minutes is enough to leave the building, make food, or have a conversation — a real break rather than a pause.

Who it suits

Fifty minutes rewards work with a long ramp-up and punishes work that is really a list of small tasks. If you spend the first fifteen minutes of any session reconstructing where you were, a longer block gets you a much better ratio of productive time to setup time.

It is also the block that most closely matches what people mean by deep work: one problem, held continuously, for long enough that the shape of it becomes clear. That is difficult to reach in twenty-five minutes, however well organised you are.

  • Writing anything longer than a page
  • Debugging or refactoring across several files
  • Dense reading with notes
  • Design and planning work with no obvious first step

Making fifty minutes survivable

Protect it properly. Notifications off, phone in another room, one tab that matters. A fifty-minute block with three interruptions is worse than three fifteen-minute blocks, because you pay the reload cost each time and get none of the depth.

For audio, pick something with no events in it — brown noise, pink noise, or an alpha binaural layer underneath on headphones. Fifty is also a focus preset in the Pomodoro timer if you want the cycle managed for you.

Common questions

Is 50/10 better than 25/5?

For work with a long ramp-up, usually yes — you spend proportionally less time reloading context. For a scattered list of small tasks, 25/5 keeps you moving better. Many people use both depending on the day.

Why 50 and not 60?

So the break fits inside the hour. Fifty plus ten repeats cleanly against a clock and a calendar, which makes it much easier to keep to.

Can I set 50 minutes as a Pomodoro focus phase?

Yes. Fifty is one of the three focus presets in the Pomodoro timer, and the short break can be set to ten minutes to complete the cycle.