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DevBench

How to use the countdown timer

  1. Pick a preset — 1, 3, 5, 10 or 25 minutes (the last one is the pomodoro focus length) — or type exact minutes (0–999) and seconds (0–59) in the fields.
  2. Press Start. The progress bar drains as the MM:SS (or H:MM:SS) display counts down; Pause and Resume hold and continue the countdown, and Reset returns it to the full duration.
  3. At zero the display turns red, a Time's up! message appears, and a three-beep alarm sounds — the audio starts from your Start click, which is what browsers require before a page may play sound.

Why the countdown never drifts

Remaining time is recomputed from an end timestamp minus the current clock on every tick, instead of decrementing a counter. A backgrounded or throttled tab therefore resumes at exactly the right value — switch away mid-cook, come back, and the timer still knows the truth.

Also useful: Stopwatch, Countdown Creator, and Countdown Calculator.