⏱️ Stopwatch

00:00:00 .000
Current Lap
00:00:00
Best Lap
--:--:--
Total Laps
0

How to Use the Online Stopwatch

1. Starting Your Timing Session

Click the green "Start" button to begin timing. The display will immediately start counting up from zero, showing hours, minutes, seconds, and milliseconds for precise measurement.

2. Recording Lap Times

While the stopwatch is running, press "Lap" to record split times without stopping the main timer. Perfect for tracking multiple rounds, intervals, or segments of your activity.

3. Pausing and Resuming

Hit "Stop" to pause your timing session. The time freezes, allowing you to resume exactly where you left off by clicking "Start" again. Great for breaks or interruptions.

4. Resetting the Timer

Use "Reset" to clear all recorded times and return to zero. This also clears your lap history and statistics, giving you a fresh start for your next timing session.

Pro Tips for Better Timing

  • Keyboard shortcuts: Use spacebar to start/stop for faster operation during sports or workouts
  • Lap strategy: Record laps at consistent intervals to track performance trends over time
  • Screen positioning: Keep the stopwatch visible during activities - the large display is readable from a distance
  • Battery saving: The stopwatch continues running even if your screen dims, but stays more accurate when visible

Frequently Asked Questions

Does the stopwatch keep running if I close my browser?

No, the stopwatch will stop if you close the browser tab or navigate away. For continuous timing, keep this tab open. The timer does continue running if your screen goes to sleep or you switch to other tabs.

How accurate is this online stopwatch?

Our stopwatch updates every 10 milliseconds, providing accuracy suitable for most sports, cooking, and fitness activities. While not laboratory-precise, it's more than adequate for everyday timing needs including interval training and race timing.

Can I use this for interval training workouts?

Absolutely! The lap function is perfect for interval training. Start the stopwatch, then hit "Lap" at the end of each work or rest period. You'll see your current interval time plus a history of all previous intervals to track your consistency.

What's the maximum time this stopwatch can measure?

The stopwatch can run for over 24 hours continuously, displaying up to 99:59:59. Perfect for ultra-marathons, long study sessions, or any extended activity that needs precise time tracking.

Why use an online stopwatch instead of my phone's built-in timer?

This web-based stopwatch offers several advantages: larger, easier-to-read display; lap timing with statistics; works on any device with a browser; no app installation required; and the visual progress ring helps you gauge time passage at a glance.

Can I see my best lap time while timing?

Yes! The statistics section shows your best lap time in real-time, along with your current lap progress and total number of laps completed. This helps you push for personal records during workouts or competitions.

Does this work on mobile devices?

The stopwatch is fully responsive and works great on smartphones and tablets. The buttons are sized for touch interaction, and the display remains clearly visible on smaller screens. Perfect for timing workouts at the gym or outdoor activities.

What sports and activities is this stopwatch good for?

This stopwatch excels at: running intervals and track workouts, swimming lap times, cycling segments, cooking and baking, study session timing, presentation practice, meditation sessions, and any activity where you need to measure elapsed time or track multiple intervals.