About Stopwatch & Timer
Each lap shows its own time next to the running total, with the fastest and slowest marked, because comparing one interval against another is the entire point of recording them. The clock is high-resolution rather than a once-a-second tick, so a long session does not drift.
Start a precise stopwatch and capture lap splits to compare intervals, with a countdown timer in the same view. It runs entirely in your browser.
Time anything with a lap-recording stopwatch, or count down from any duration with a clear time's-up alert — both in one tool. Use the stopwatch for workouts, cooking and speed tests, and the countdown for breaks, presentations and kitchen timers.
Record laps to compare one interval against another, or switch to the countdown for a fixed duration with an alert at the end. Both share a tab, so timing a workout and its rest period does not mean swapping tools.