Set the timer to 147 seconds

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How to use the online timer

A proper warm-up doesn't need to be long, and 147 seconds is enough to get your muscles moving and your heart rate up before you jump into the main session. Start the clock, run through a few dynamic stretches or some light cardio, and let the beep tell you when to switch rather than cutting it short because you're keen to get started. Rushing this bit just costs you later.

Press Start and it gets going immediately, no sign-up screen or settings menu standing in the way. The one thing to remember is that it counts down inside this browser tab, so it needs to stay open rather than closed or replaced by another site if you want an accurate result. A sound plays once the time is up, which is your cue that whatever you were timing is done.

Kitchen timers are great until you need one outside the kitchen, and most phone timers sit behind a lock screen and a couple of taps. A browser tab is already open on most devices anyway, so the timer is right there without hunting for an app or a gadget. It's free, needs no registration, and works the same whether you're cooking, exercising, or trying to focus. People type this as set timer 147 seconds or timer for 147 seconds; both land here and start the same count.

Common questions

Can I pause the timer partway through?

Yes, pause and resume are both available, so you can stop the count if you're interrupted and pick up again exactly where you left off.

Can I set a custom time instead of the preset?

Yes, most pages let you adjust the minutes and seconds directly, so you're not limited to the exact length shown in the page title.

Does the timer work without an internet connection?

The page needs to load once, but the countdown itself runs locally in your browser, so a dropped connection partway through won't stop it.

Will the timer still run if my laptop goes to sleep?

No, if the device sleeps or the browser is suspended, the countdown pauses along with it, so keep your screen awake for an accurate result.