This page is a 21 second timer that counts down once you click 'Start'. This online countdown timer will alarm you with sound in 21 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.
Most Popular Timers
These are our most popular countdown timers.
Related Countdown Timers
If you need another minute timer please select one of the following.
Looking For A Stopwatch?
If you need a stopwatch instead, please use the following link.
See what some of our users are saying:
Lap Timer Stopwatch
"I used this stopwatch to time my son running laps. Accurate down to a microsecond, very simple and useful!" - ★★★★★ - James
5 Minute Timer
"The 5 min timer was ideal for egg boiling. Perfect eggs in the morning!" - ★★★★★ - May
60 Minute Timer
"This simple 60 minute timer was ideal for baking my marble cake. The alarm was loud and I didn't miss it." - ★★★★★ - Jo
100m Dash Stopwatch
"I timed my kids running the 100m dash with this simple tool. I recommend it." - ★★★★★ - Mike
"Simple stopwatch that just works. 5 stars." - ★★★★★ - Michael
Split Times Stopwatch
"Split times on the stopwatch were great for timing my runs" - ★★★★★ - Gemma
"I wish more sites were as simple and straight forward as this one!!" - ★★★★★ - Linda
30 Minute Timer
"I used the 30 minute timer to set a reminder for myself to take a break. Works great!" - ★★★★★ - Liu
10 Minute Timer
"The 10 min timer worked perfectly." - ★★★★★ - Maya
6 Minute Timer
"Boiling eggs was easy with this 6 minute timer" - ★★★★★ - Nina
Cooking Countdown Timer
"I timed my lasagna in the oven with this countdown timer. Perfect!" - ★★★★★ - George
45 Minute Alarm Timer
"45-min timer set to wake me up after a power nap :)" - ★★★★★ - Vicky
"The alarm was nice and loud!" - ★★★★★ - Sophie
You can read our latest blog posts here:
What better way to use a timer than to make the perfect breakfast eggs? But how long should you boil eggs so they become your dream dish? This guide will help you with exactly that problem…Read on ›
You can use a stopwatch for almost anything, but the most popular use remains timing someone or yourself while running, cycling or doing training exercises of any kind. Our stopwatch is accurate enough for these purposes, recording up to a tenth of a second. It also comes with a lap timer / split timer, so you can keep track of and improve on those lap times.Read on ›
There are infinite possibilities as to what you can count down with our online timer. But using a timer with alarm sound works great for any kind of recipe, whether you are cooking or baking.Read on ›