Stopwatch & Timer

About the Stopwatch & Timer

The MyCalendarTools Stopwatch & Timer gives you two precise timing tools in one place. The stopwatch counts up from zero and is accurate to the centisecond (1/100th of a second), making it suitable for sports timing, study sessions, cooking, and any task where you need to measure elapsed time. The countdown timer counts down from a duration you set and alerts you with an audio beep and a screen notification when time is up.

How to use the Stopwatch

Click Start to begin counting up.
Click Pause to stop the clock without resetting it.
Click Start again to resume from where you left off.
Click Reset to return to 00:00.00.

How to use the Countdown Timer

Enter the number of minutes and seconds you want to count down from.
Click Start Timer — the display counts down in real time.
When it reaches zero, a short audio beep plays and a screen alert appears.
Click Reset to return to your original duration for another round.

Common uses

Cooking — time eggs, pasta, baking, or any recipe step that needs precision.
Exercise — track intervals, rest periods, or total workout duration.
Study (Pomodoro technique) — set 25-minute focus blocks with 5-minute breaks.
Meetings — keep presentations and speaking slots on time.
Games & quizzes — set a challenge timer for trivia or board games.

Tip: Keep this browser tab open for reliable timer alerts. If you switch to another app, the timer still runs in the background but the audio alert depends on your browser's background audio permissions. For critical timing needs, consider keeping the tab visible.

About this calendar tool

Free online stopwatch and countdown timer with clean browser-based controls. This page is written so the main purpose of the tool is available directly in the HTML, even before any interactive script runs. That helps visitors, search engines and accessibility tools understand what the page does.

Use Stopwatch & Timer when you need a quick answer without creating an account, downloading an app or sending your information to a third party. The tool is designed for everyday planning, comparison and checking, with results shown in the browser as soon as you enter the details.

How to use Stopwatch & Timer

Enter the dates, numbers or options requested by the form on this page.

Choose any unit, country, time period or setting that applies to your situation.

Press the calculate or generate button to show the result.

Review the explanation beside the result before relying on it for planning.

When this page is useful

Stopwatch & Timer is useful for quick checks, household planning, school or work tasks, content planning and comparing simple scenarios. Many visitors use these tools to avoid manual counting or spreadsheet setup for a one-off question.

The result should be treated as a practical guide rather than professional advice. For legal, financial, health, tax, pregnancy, school holiday, tide or public holiday decisions, confirm important details with an official source or qualified professional.

Privacy and accuracy

MyCalendarTools tools run in your browser wherever possible. We aim to keep pages clear, lightweight and easy to read on mobile, tablet and desktop. If a page uses dates, public holidays or calendar rules, those rules can change over time, so checking the final result against the relevant authority is recommended for high-stakes decisions.