Timer
Countdown timer with quick presets, an alarm, Pomodoro, a countdown to a time of day and several named timers at once.
How to use
Choose a quick start (1, 3, 5, 10, 15 or 25 minutes), which starts at once, or set hours, minutes and seconds and press Start timer. Each timer gets a card with the time left, a progress bar and the time it ends; Pause, −1 min and +1 min adjust it while it runs, and a name such as Tea or Oven tells several timers apart. Up to 20 can run at the same time.
Until a time of day counts down to a clock time such as 18:30; if that time has already passed today, it counts down to tomorrow. Pomodoro alternates focus and breaks: 25 minutes of focus, a 5-minute break, and a longer break after every four rounds, the pattern Francesco Cirillo devised in the late 1980s. Every length can be changed; the timer moves from one phase to the next on its own, with a short sound at each change, and Skip ends the current phase early.
When a timer ends, the chosen sound plays for 30 seconds or until Stop alarm, the card shows Time’s up and, if you allowed it, a notification appears and the phone vibrates (vibration works in Chrome and Edge on Android; Safari and Firefox do not support it). +1 min on a finished timer gives it one more minute. Browsers let a page play sound only after you have clicked or pressed a key on it, so after a reload one click on the page switches the sound back on. Test sound checks the volume.
Each timer keeps the moment it ends, not a count of seconds, and that moment is also queued on the audio clock, so the alarm sounds on time in a background tab: Chrome runs the scripts of a tab hidden for more than five minutes about once a minute, but queued audio is not delayed. On a phone, keep the page open and tick Keep the screen on, because a locked phone may pause the browser. The timers and settings are kept on this device and come back after a reload; a timer that ended while the page was closed shows as finished, without ringing.
Example
25 min quick start at 2:00 PMEnds at 2:25 PM; the tab title counts down from 25:00.Until 18:30, started at 19:00Counts down to 18:30 the next day: 23 hours 30 minutes, shown as 23:30:00.Pomodoro 25 / 5 / 20, long break every 4 roundsFour focus rounds, three short breaks and one long break: 4 × 25 + 3 × 5 + 20 = 135 minutes per cycle.A 10-minute timer with +1 min pressed twice12 minutes in all; the end time and the progress bar move with it.
Frequently asked questions
Will the alarm ring if the tab is in the background?
Yes, as long as the page stays open and the sound is on, which any click on the page does. The end is queued on the audio clock, which browsers do not slow down. A notification, if you allowed one, may come a moment later.
Does it work on a phone with the screen locked?
Not reliably: phones pause pages in the background to save battery, iPhones especially. Keep the page open with Keep the screen on ticked, and for an alarm that must ring with the phone locked, use the phone’s own clock app.
What is the Pomodoro technique?
A way of working in fixed intervals devised by Francesco Cirillo in the late 1980s and named after the tomato-shaped kitchen timer he used: 25 minutes of focus on one task, a short break, and a longer break after four rounds.
Are my timers saved?
Yes, on this device only, in the browser’s local storage, with the sound and notification settings, so they survive a reload. A private window forgets them when it closes. Remove deletes a timer.
Why does it need a click after a reload?
Browsers block sound on a page until the person using it clicks or presses a key there, so the alarm cannot be queued before that. The timers themselves keep counting.