How to use several stopwatches
Each card is its own stopwatch with Start, Lap and Reset. Click the name to rename it after a runner, a team or a task.
Use Start all and Stop all to control every stopwatch at once. Reset all needs a second press to confirm, so you do not clear your times by accident.
When one clock is not enough
- Timing several runners or swimmers in the same race
- Tracking how long each team takes in a classroom challenge
- Comparing how long different tasks take during the day
- Keeping time for several players in a board game
- Running steps side by side in a lab or a kitchen
Start together, stop one by one
For a race, press Start all at the start signal, then press Stop on each card as each person finishes. Cards that are still running are outlined, so you can see at a glance who is still going.
Your stopwatches are saved
The list, the names and the times are saved in this browser. Close the tab or reload the page and running stopwatches keep counting. Nothing is sent to a server.
To start fresh, reset all or delete the cards you no longer need. You can keep up to 24 stopwatches.
Questions and answers
How many stopwatches can I run at once?
Up to 24. Each one keeps its own time and laps, and they all run at the same time without slowing each other down.
Can I rename the stopwatches?
Yes. Click a name and type a new one, like a person, a team or a task. The name is saved with the stopwatch.
Do the stopwatches keep running if I close the page?
Yes. Their start times are saved in this browser, so when you open the page again every running stopwatch shows the right time.
How do I delete a stopwatch?
Press the cross on its card, then press Delete? to confirm. The other stopwatches are not affected.
Can I start every stopwatch at exactly the same moment?
Yes. Start all starts every stopwatch from the same instant, so their times line up exactly.