Start the 3 Second 🕒 Timer in one click! The timer is already set for 3 Seconds, you just need to start it and be sure that timer notify you with an accuracy of milliseconds!

Simple to use, no settings, just click start for a countdown timer of 3 Seconds. Try the Fullscreen button in classrooms and meetings :-)

A 3 second timer with a gentle arpeggio alarm when the timer runs out at 0:00. This 3 second timer is great to poke fun at a friend or show how long three se...

This 3 second timer is easy and simple online countdown timer clock with alarm. So it is actually 3 second countdown. Just press start the "start" button and this three second timer will start. If you want to pause the timer, no problem, just press the "pause" button and if you want to continue, press the "resume" button.

Start your free online 3 second timer now! Easy-to-use countdown with full-screen display and alarm. No registration needed. Perfect for high-intensity tasks like HIIT intervals, quick responses, or timed drills.

This online countdown timer will alarm you with sound in 3 second. You can pause and resume this timer anytime by clicking the 'Pause' or 'Resume' buttons. When the timer is up, it will blink and sound an alarm.

When you need a timer with pre-set 3 seconds, like checking body temperature or pulse or playing a round of a game, you need a 3 seconds timer that’s quick, easy to use, simple to access and quick to work.

2025年3月14日 · 3 seconds timer countdown. No ads, big, clean and free to use. Full screen and dark mode supported. Various customization available.

Free online 3 second timer. Start your 3 seconds countdown now. Perfect for timing your activities. Easy to use, no installation needed and supports full screen mode.