Stopwatch & Timer Tool
Professional stopwatch and countdown timer with precise controls, lap tracking, and audio alerts. Perfect for workouts, cooking, studying, and productivity!
How to Use the Stopwatch & Timer
Choose Your Mode
Select between Stopwatch for measuring elapsed time (workouts, activities) or Countdown Timer for setting specific durations (cooking, breaks, reminders). Each mode offers specialized controls.
Set Time & Start
For stopwatch: Click Start to begin timing. For countdown: Set hours, minutes, and seconds, then click Start Timer. Both display precise time with millisecond accuracy and smooth animations.
Control & Track
Use Pause to temporarily stop, Resume to continue, and Lap (stopwatch) to record split times. The countdown timer shows visual progress with a circular indicator and remaining time display.
Get Alerts & Reset
Countdown timer provides audio and visual alerts when time expires. View lap times in the stopwatch mode for performance analysis. Use Reset to clear and start fresh anytime.
Frequently Asked Questions
How accurate are the stopwatch and timer measurements?
+Our tools provide millisecond-level accuracy using JavaScript's high-resolution timing APIs. The stopwatch displays time to hundredths of a second, while the countdown timer is precise to the second. Both maintain accuracy even when running in background browser tabs.
What happens when the countdown timer reaches zero?
+When the countdown reaches zero, you'll receive both visual and audio alerts. A modal popup appears with a notification sound, the timer display blinks, and the browser tab title updates to alert you even if you're on another page. The alert continues until you acknowledge it.
Can I record multiple lap times with the stopwatch?
+Yes! The stopwatch includes a lap feature that records split times without stopping the main timer. Click "Lap" to record the current time, and all lap times are displayed in a scrollable list below the controls. This is perfect for tracking workout intervals or race segments.
Do the timers continue running if I close the browser tab?
+The timers will pause if you close the browser tab or navigate away from the page. However, they continue running accurately when the tab is open but not active. For important countdowns, keep the tab open and consider bookmarking the page for quick access.
What's the maximum time I can set for the countdown timer?
+You can set up to 23 hours, 59 minutes, and 59 seconds (nearly 24 hours) for the countdown timer. This makes it suitable for long-duration activities like slow cooking, extended work sessions, or overnight processes. The timer maintains accuracy throughout the entire duration.