How to use the online timer
The timer counts down the time you set and ends with a clear alarm. Enter hours, minutes and seconds above, or pick one of the ready-made countdowns — in seconds, in minutes or in hours.
- Set the time — set the exact length you need.
- Press Start — the countdown stays on screen the whole time.
- Keep the tab open — the alarm only sounds while the tab stays open.
A timer earns its keep in the kitchen, at the gym, during study blocks and anywhere else a few minutes either way actually matters. It works in any modern browser, with no app and no account.
A countdown timer and an alarm solve different problems, even though people often ask for one when they mean the other. An alarm clock fires at a fixed point on the clock, like 7 am; a timer counts down from a duration you choose, like 20 minutes, and it doesn't matter what time it is when you start it. This section covers 444 preset duration pages built for exactly that.
Each page is dedicated to one length of time, so a 10-minute timer, a 25-minute timer or a 90-minute timer all load as their own simple countdown, with large digits and a clear alert sound when the time runs out. There's no dial to drag or dropdown to open, which matters when you're mid-task and just need the countdown running.
Common ways people use it
- Cooking and baking, where a few minutes either way changes the result
- Focused work blocks, including the classic 25-minute Pomodoro session
- Workouts, rest periods between sets, and timed circuits
- Exam practice and timed writing exercises
- Presentations and speeches kept to a strict length
Like the alarm clock, the timer runs in the browser tab rather than as a background service, so the tab needs to stay open for the countdown and its sound to work. For a kitchen timer running next to the stove or a work session on the same screen you're using anyway, that's rarely a problem in practice.
If you already know the exact duration you want, searching for it directly, such as "15 minute timer" or "45 minute timer", usually lands you straight on the matching page, saving the trouble of adjusting a generic countdown by hand.
Common questions
What's the difference between a timer and an alarm clock?
A timer counts down from a duration you set, such as 30 minutes, while an alarm goes off at a specific clock time, such as 7:30 am — this section is for the former.
Does the timer keep running if I switch to another tab?
Most browsers keep the countdown ticking in the background, but it needs the tab to stay open; closing it or closing the browser will stop the timer.
What sound plays when the timer finishes?
A clear alert tone plays through your speakers once the countdown reaches zero, and it continues until you return to the tab and dismiss it.
Can I set a timer for an unusual length, like 17 minutes?
Yes, all 444 duration pages cover minute-by-minute and hour-by-hour options, so uncommon lengths like 17 minutes have their own dedicated page.