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Switch to Stopwatch

This page is a 18 hour timer that counts down once you click 'Start'. This online countdown timer will alarm you with sound in 18 hour. 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.



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.

User Reviews

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

"Simple stopwatch that just works. 5 stars." - ★★★★★ - Michael

Split Times Stopwatch

"Split times on the stopwatch were great for timing my runs" - ★★★★★ - Gemma

Simple Timer

"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

Alarm Sound

"The alarm was nice and loud!" - ★★★★★ - Sophie


Blog Posts

You can read our latest blog posts here:

Boil perfect Breakfast Eggs with our Countdown Timer

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 ›

Use our Stopwatch to Time your Laps

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 ›

Use our Alarm Timer for your Recipes

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 ›

Welcome to Timer-Stopwatch.com

We are keen to build the fastest, simplest, cleanest and most accurate timer and stopwatch services online. Just a simple browser-based web tool that allows anyone, anywhere to quickly time any event or object that they so desire.

Read on ›