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Timer

0:10

8 rounds · 40s work / 20s rest

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Rounds

My times

  • Nothing saved yet. Saved times stay on this device — no account, nothing uploaded.

My sequences

A routine of named steps, each with its own length, run in order and repeated.

    New sequence

      An audio file up to 1 MB. It stays in this browser and appears as "My sound" in the Sound list.

      Space
      Start or pause
      F
      Fullscreen
      Esc
      Leave fullscreen
      R
      Reset
      ↑
      Add a minute
      ↓
      Take off a minute
      M
      Mute or unmute

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      Read next: What is an EMOM workout? How it works, and how to set one upAll 8 timers

      Interval timer for HIIT, EMOM and circuits

      Set your work, your rest and how many rounds. The screen turns one colour for work and another for rest, so you never have to squint at a number mid-set.

      FreeFullscreen, no ads

      The short answer

      Set the work seconds, rest seconds and number of rounds below, then press Start. The screen is green while you work and amber while you rest, with a three-second lead-in so you are not caught mid-setup. A common starting point is 40 seconds of work to 20 of rest for eight rounds.

      How to use it

      Three steps to a timer on the wall

      1. Step 1: Choose a time

        Pick a preset or set your own. The timer remembers what you used last on this device.

      2. Step 2: Press start

        Start the timer, then press F or the fullscreen button to fill the screen.

      3. Step 3: Run the room

        Space pauses, the up arrow adds a minute, R resets. Fullscreen shows the timer alone, with no ads and no navigation.

      Running it well

      Four things worth knowing

      • Use the lead-in

        Every preset starts with a short prepare phase so you can put the phone down and get into position. Without it the first round is always the worst one.

      • Rest is part of the work

        In interval training the rest ratio is what makes the effort repeatable. Cutting rest to finish sooner turns intervals into a slow continuous effort, which is a different session entirely.

      • Turn the sound up for the gym

        Switch to the loud bell if the room is noisy. The cue fires at each transition, so you can keep your eyes on what you are doing rather than on the screen.

      • EMOM means the clock does not wait

        In an EMOM the next round starts on the minute whether you have finished or not. Finishing early is the rest — that is the point of the format.

      In the room

      Built to be read from the back row

      A timer that only works on the person running it is not doing the job. The digits scale to the screen, the colour changes before the end, and fullscreen shows nothing else at all.

      A teacher presenting to a classroom of students
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      Photo by Quilia on Unsplash

      No ads on your big screen

      Ads pay for this page, and they stay on this page. The moment the timer goes fullscreen there is nothing on screen but the time — no banners, no navigation, no surprises in front of a room.

      • Fullscreen shows the timer alone
      • Ad sounds can never clash with the alarm
      • Saved times stay on your device — no account
      • Works with an ad blocker, and offline once loaded
      FAQ

      Questions people ask

      Anything we've missed?

      Tell us

      Can I save my own routine?

      Yes. Under the timer, make a sequence: name each step, give it a length, mark it work or rest, and set how many times it repeats. It is saved in this browser and runs like any preset. You can also pick your own audio file as the alarm.

      What is a good work-to-rest ratio?

      For general conditioning, 2:1 work to rest is a common starting point — 40 seconds on, 20 off. For harder efforts closer to sprinting, 1:2 or 1:3 lets you actually repeat the intensity. The right ratio depends on how hard the work interval is meant to be.

      What is EMOM?

      Every Minute On the Minute. You start a set of work at the top of each minute and rest for whatever is left. A preset for it is included, set as 60 seconds of work with no separate rest phase.

      Does the timer keep running if my screen locks?

      The page asks the browser to keep the display awake while a timer runs, so it should not lock. On iOS this is less reliable than on desktop — plugging the phone in helps.

      Can I use it on a TV?

      Yes. Open the page in the TV's browser or cast the tab, then go fullscreen. The colour change is designed to be read from across a room rather than close up.

      Will ads appear during a workout?

      No. Fullscreen carries no ads at all, and the interrupting formats stand down entirely while a timer is running.

      Can I save a session I use often?

      Yes. Saved settings stay on that device, with no account and nothing uploaded.

      Time something specific

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