30 seconds timer
30 seconds countdown with alarm.
Timer
00:30
Quick presets
Advertisement
This timer is set to 30 seconds. That is 30,000 milliseconds. 120 timers like this fit in one hour and 2,880 in a day.
During 30 seconds a resting heart beats about 35 times and a person walks roughly 40 metres at an easy pace.
Advertisement
What is a 30 seconds timer good for?
- short exercise sets and rest between reps
- games and quizzes with a time limit
- quick breathing exercises and stretches
How to use it
Press the space bar or the Start button. When it reaches zero your chosen sound plays; on the main timer page you can add and chain several timers for intervals. Sound and volume settings are saved in your browser.
Advertisement
Frequently asked questions
30 seconds equals 30 seconds.
Press Start: the time is already set. You can pause it, reset it, change the sound or go full screen.
Yes. The timer keeps running in the background and rings when it ends as long as the page stays open; the tab title shows the time left.
In supported browsers the "Keep the screen on" option uses the Wake Lock API to prevent it.