30 Minute Timer
One click to startAlarm at zeroKeeps time in the background
Time's up
Space to start or pause, R to reset, F for full screen.
Half an hour. Press Start and the clock counts down from 30:00, keeps running if you switch tabs, and beeps when it is done.
What people use a 30 minute timer for
- A workout: thirty minutes of moderate exercise five days a week adds up to the 150 minutes health guidelines ask for.
- A study block, or a reading session before bed.
- Something in the oven, or a slow simmer.
- Screen time for kids, with an agreed end.
How this timer works
- It remembers the moment it will end, so it stays right when you switch tabs or your phone locks.
- At zero it plays a few short beeps, vibrates on phones that can, and shows "Time's up" in the tab title.
- While it runs it asks the screen to stay on. Full screen makes the numbers big enough to read across a room.
Other timers
Questions people ask
Is 30 minutes of exercise a day enough?
The usual guideline is at least 150 minutes of moderate activity a week. Thirty minutes on five days gets you there.
Will it work if my laptop goes to sleep?
The time stays right, because the timer knows when it should end. The beep can only play while the page is running, so keep the device awake for the alarm.
Does the timer work without an internet connection?
Once the page has loaded, yes. The timer runs in your browser and does not need the network to count down or to beep.
Counting down to a date rather than a few minutes? The countdown maker works for any day, and with Pro the Countdown app puts it on your iPhone Lock Screen.