Set the timer to 45 seconds

00:00:00

How to use the online timer

Getting through a full plank hold feels endless without something to watch, so set 45 seconds and let the numbers do the work instead of your wobbling arms. Start the count the moment you're in position, breathe steadily, and resist checking your phone rather than the timer. It's a handy length for warm-ups, finishers, or squeezing a bit of core work into a short break at your desk.

There's nothing to configure beyond tapping the button: press Start and the numbers begin ticking down straight away. The tab needs to stay open in your browser for the whole stretch, since closing it or switching the computer off stops the count, though you're free to switch to another tab and come back later. A clear alarm sounds the moment it hits zero, loud enough to notice from another room.

A mechanical timer needs to be wound and a phone timer needs the phone unlocked, but this one just needs the page you already have open. It sits inside your browser, ready whenever you are, and it's the same tool whether you're on a laptop or a tablet in the kitchen. Free, with nothing to install or sign into, it's built to get out of your way and count. Set a timer for 45 seconds, set the timer to 45 seconds, start a 45 seconds timer — it is the same countdown either way.

Common questions

Can I use the timer on my phone?

Yes. It works in any mobile browser, though the tab still needs to stay open rather than sitting behind other apps for a reliable count.

Does the timer make a sound when it finishes?

Yes, an alarm plays once it reaches zero, provided your device's volume is turned up and the tab hasn't been muted.

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.