Does this stopwatch stay accurate when switching browser tabs?

Yes, the timing engine uses high-precision system timestamps so elapsed time remains 100% accurate even if the tab is minimized.

Does the countdown timer play a sound when it reaches zero?

Yes, an audible alarm sound will play automatically when the countdown timer finishes.

Precision Timing Engine

Digital Stopwatch & Timer

Measure elapsed time with millisecond precision, analyze lap splits, and set customizable countdown alarms.

00:00:00.00

Frequently Asked Questions

How does the lap analyzer identify the fastest and slowest lap?

As you log consecutive laps, the split calculator analyzes the relative millisecond difference between laps and marks the fastest lap in Green and slowest in Red.

Can this be used as a Pomodoro study timer?

Yes! Switch to Countdown Timer mode and tap the '25 Min (Pomodoro)' preset button to start a productive focus session.