Start counts up; tap Lap for splits and review the list and simple stats when you finish.
How the stopwatch works
A stopwatch counts up from zero and lets you record laps—split times without stopping the master clock. That is the classic pattern for track repeats, treadmill segments, pool lengths, or any effort where the end is not hard-coded in seconds.
Press Start when a segment begins; tap Lap whenever a lap or rep block finishes. At the end, stop and read the list: each lap duration is visible, sometimes with deltas—handy for spotting fatigue late in a workout.
Unlike the HIIT builder, you decide when work ends—great for fartlek runs, variable rep strength work, or mixed sessions. You can still pair tools: stopwatch for an unstructured block plus an interval timer for a structured finisher.
Export: if the UI offers CSV or copy, archive splits after training for a coach or spreadsheet tracking—common for 400m pacing trends or repeated barbell sets.
Accuracy: plenty for amateur testing; sanctioned meets need federation timing. Keep the tab active to avoid throttling.
Schools and labs: measure reaction tasks or log manual observations with lap marks for each event.
Remote work: measure how long a task truly takes without pausing for micro-interruptions—helps future estimation.
Tip: reset between unrelated tests so laps stay meaningful; jot session names in a notebook if exports lack titles.
Stopwatch FAQ
What is a lap?
A split marker without stopping the main clock — you see how long each segment lasted.
Can I export times?
If the UI exposes export (for example CSV), use it after the session for logging or spreadsheets.
Is there pause?
Usually yes—use pause for interruptions; exact controls are on the page UI.
Does it work offline?
After the page loads, many features work without network until you close the tab.