Start, pause and lap with true millisecond precision. Every lap is logged automatically so you can review your splits the moment you're done.
The TimerHub stopwatch is a no-nonsense elapsed-time tool for anyone who needs to measure how long something actually takes — a workout set, a recipe step, a debugging session, or a rehearsal run-through. It runs entirely in your browser, keeps accurate time even if you switch tabs, and logs every lap so you can review your splits afterward instead of trying to remember them.
Press the center button to start timing. While running, tap the lap button (the icon on the right) to record a split — the clock keeps running and a new row appears at the top of your lap history showing the time since your last lap and the total elapsed time. Tap the center button again to pause, and use the circular reset icon on the left to clear everything and start over. Reset is only available while the stopwatch is paused, so you never accidentally wipe a run in progress.
Sports training. Time sprints, rest intervals or drill sets and use the lap list to compare each rep at a glance.
Cooking. Track how long a sauce actually needs to reduce or dough needs to proof, lap by lap, across multiple attempts.
Task duration tracking. Start the stopwatch when you begin a task and lap it every time you switch context, giving you an honest record of where your time went.
Coding and debugging sessions. Lap each time you reproduce a bug or complete a test run to see whether your fixes are actually getting faster.
Public speaking practice. Lap at the end of each section of a talk to check your pacing against a rehearsal script.
Laps are ordered most-recent-first so the number you care about right now is always at the top — the row labelled "1" at the bottom of the list is always your very first lap. If you're comparing consistency rather than chasing a single fast time, look at how tightly your splits cluster rather than only at the best/worst highlights. Turn off lap sound in noisy or quiet environments using the speaker icon in the top-right corner of the stopwatch.
It displays time down to the centisecond (1/100th of a second) and uses timestamp-based calculation rather than counting fixed intervals, so it stays accurate even if the browser tab is in the background or your device briefly slows down.
No — record as many laps as your session needs. The list scrolls and the most recent lap always appears at the top.
Once you've recorded two or more laps, your fastest split is highlighted in green and your slowest in red, based on the time between consecutive laps — not the cumulative total.
It keeps accurate time while the tab stays open, including in the background. Closing the tab or browser will stop the session — TimerHub doesn't currently save an in-progress stopwatch to resume it after the page is closed.
Yes. The layout, buttons and lap list are all touch-friendly and resize for smaller screens, and fullscreen mode works well for propping your phone up during a workout.
They share the same accurate timing core, but the Lap Timer puts your best lap, average lap and lap count front and center — built for people whose main goal is comparing splits, like runners and swimmers, rather than just watching one running clock.