Focus Timer — Deep Work Countdown

A Pomodoro timer forces 25-minute rounds whether you need them or not. Some tasks deserve 90 minutes of unbroken attention; others are done in 12. Focus Timer gives you a single countdown at whatever length you actually need, from 1 minute to 4 hours, so the structure fits the work rather than the other way around.

Six preset buttons handle the most common durations — 15, 30, 45, 60, 90 and 120 minutes. The + and − steppers adjust in 5-minute increments for anything in between, and both controls are only visible when the timer is at its starting value and not running. Once the ring is moving, the session is locked so no accidental tap resets your progress.

Two stats track the session. Sessions completed increments the moment the countdown reaches zero. Total focus timeadds the elapsed minutes from each completed run, displayed as1h 45m once you cross 60 minutes. Both counters reset when you close the page — they are a daily signal, not a permanent record.

Getting Started: Running Your First Block

1. Click a preset button — 90min is a common choice for deep-coding stretches — or use + / − to dial in a custom duration.
2. Press Start. The blue ring starts filling from the top; the status label reads running.
3. To interrupt, press Pause. The ring freezes and the label switches to paused. Press again to continue from exactly where it stopped.
4. To abandon the session, press the Reset button. The ring resets to full and the duration returns to your chosen value without clearing the stats.
5. When the ring completes, the alert you picked under Sound & alerts rings until you click (if sound is on) and Sessions completed increments by one. You are back on the ready screen to start the next block.

Precision, Limits and Browser Behaviour

• Duration is clamped to 1–240 minutes. Pressing − at 1 minute has no effect; pressing + at 240 minutes stops there. Both steppers visually dim at their respective limits.
• A finished session adds its full length to Total focus time, however many times it was paused; a session you reset before 0:00 adds nothing.
• The countdown runs against the clock rather than counting ticks, so it ends on time even when the tab sits behind other windows, where browsers slow timers down. Turn on Notify me in other tabs to get a system notification as well as the sound.
• Every sound is generated in the browser with the Web Audio API, so there is no audio file to download. A short tick marks each of the final 5 seconds; at 0:00 the chosen alert (Chime, Bell, Alarm or Soft) repeats for up to a minute, the tab title flashes and phones vibrate.
• Pressing the bell icon mid-session silences the remaining ticks and the completion chord without pausing the timer or resetting anything.