Brief

JerryTimer is a simple countdown timer and stopwatch. It has everything you need.

In order to change the hour, minute, second, or millisecond, you can press one of these numbers and type a new value. Also, you can hide the timer’s button if you want to. It is very useful for examinations, quizzes, and everything that requires a timer. The black background makes it more comfortable to display using a projector. Of course, you can change the theme settings as you like.

Feature

Easy-to-use countdown timer and stopwatch
Use the keyboard to enter hours, minutes, seconds, or even milliseconds
You can modify the time when the timer is paused
Multiple color themes and languages
Hide the timer buttons
Enlarge the numbers of the timer and switch to full screen
Time’s up notification sound
The timer status can be restored (Using Cookie)
Compatible with different browsers, as low as IE 11
No ads, that’s important

How to use

Some details you need to know.

Stopwatch mode and countdown mode

If the timer is zeroed, pressing the Start button will start the timer in stopwatch mode, and if the timer is not zeroed, pressing the Start button will start the timer in countdown mode.

Modify the timer

When the timer stops running, you can use the mouse to press one of the numbers, the number will be temporarily hidden. You can click elsewhere now if you do not want to modify the number.

Then, you can input a new value. When you’re done, you can click elsewhere to save the value, or use Tab or Enter to go to the next field.

Start and pause

You can press the button on the left to start or pause the timer. Also, when the time is up, you need to press the reset button to restart the countdown timer.

Reset and clear

The Reset function can set the time to the previous user setting. The Clear function can zero the timer.

I need more features

Of course, there are many timers designed to be more useful and advanced. For example, you can use LiveSplit, a professional, highly customizable timer.

If you want to add a new feature, or you find a vulnerability, or you want to translate this timer into another language, please go to here, thank you.