Stopwatch & Timer

Accurate online stopwatch with lap times and countdown timer. Perfect for workouts, cooking, studying, and any time tracking needs. Works even when the tab is in the background.

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How to Use

⏱️ Stopwatch Mode

  1. Click Start to begin timing
  2. Click Lap to record lap/split times without stopping
  3. Click Pause to pause, then Start to resume
  4. Click Reset to clear and start over
  5. Lap times are saved in a table showing individual and cumulative times

⏲️ Timer Mode

  1. Set hours, minutes, and seconds, or use quick presets
  2. Click Start to begin countdown
  3. Watch the progress bar to see remaining time visually
  4. Click Pause to pause, then Start to resume
  5. Click Reset to restore original time
  6. When timer reaches zero, you'll get an alert notification

Common Uses

🏃 Workouts & Exercise

Track running laps, interval training (HIIT), rest periods between sets, or total workout duration. Use lap times for circuit training rounds.

👨‍🍳 Cooking & Baking

Set timers for cooking different dishes simultaneously. Track marinating time, rising dough, or precise baking durations.

📚 Study Sessions

Use Pomodoro technique (25 min work, 5 min break), track study session duration, or time practice tests and assignments.

💼 Work & Productivity

Time meetings, track billable hours, manage presentation time limits, or use for time-boxing tasks.

🎮 Gaming & Speedruns

Track speedrun attempts, time individual game levels, or measure reaction time and performance improvements.

🧘 Meditation & Breathing

Set meditation session timers, breathing exercise intervals, or yoga pose hold durations.

Tips & Features

  • Accurate to milliseconds: Displays time in hundredths of a second for precise timing
  • Works in background: Timer continues running even if you switch tabs or minimize browser
  • Lap tracking: Record unlimited laps with individual and cumulative times
  • Progress visualization: Timer mode shows progress bar for visual time tracking
  • Quick presets: Common timer durations (1, 5, 10, 15, 25, 30 min, 1-2 hours)
  • Keyboard friendly: Pause/resume with spacebar (coming soon)
  • Mobile responsive: Works perfectly on phones and tablets

Frequently Asked Questions

How accurate is the stopwatch?

The stopwatch is accurate to 10 milliseconds (0.01 seconds). It uses high-precision browser timing APIs for reliable measurements.

Will the timer keep running if I close the tab?

No. The timer requires the browser tab to remain open (can be in the background). Closing the tab will stop the timer.

What happens when the timer reaches zero?

You'll receive a browser alert notification. Make sure to enable notifications for this website to hear the alert sound.

Can I see lap times while the stopwatch is running?

Yes! Click the Lap button while running to record a lap time. The stopwatch continues running while laps are recorded.

What's the maximum timer duration?

You can set a timer up to 23 hours, 59 minutes, and 59 seconds (just under 24 hours).

Is my timing data saved?

No. All timing data is temporary and cleared when you refresh the page or close the browser. This ensures privacy.