30 second timer
This timer is set to exactly 30 seconds. Press Start, and an alarm will ring when the time is up. Need a different time? Change it below or pick another ready-made timer.
Keyboard: Space = start/pause · R = reset · F = full screen
Great for
A 30 second timer is handy for a plank, a quick stretch, hand-washing or a speed round in a game.
How to use it
Pick a time with the quick buttons or type hours, minutes and seconds. Press Start (or the Space key). The alarm rings when the time is up – press Stop to silence it. Use full screen to show the timer on a projector or TV.
Questions & answers
How do I set a 30 second timer?
It's already set! Just press Start. The countdown runs for 30 seconds and then rings.
Will it ring if my screen locks?
Keep this tab open with the sound on. The timer uses your device's clock, so it stays exact, and it asks the browser to keep the screen awake while running.