Set a Timer, Start a Stopwatch, Test Your Clicks
The stopwatch above starts the moment you press it, with no sign-up and no settings to read first. Below it are the three things this site does: countdowns, the stopwatch, and click tests.
0:00.00
Timed against the system clock rather than a frame counter, so it stays accurate if the tab is backgrounded.
The elapsed time is read from your device clock, so it stays accurate in a background tab. It is not a stopwatch for anything that has to be defensible: a race result, a test, or a record.
Browse
- Online Timer Set a countdown from 10 seconds to 2 hours and it starts…
- Stopwatch A stopwatch that starts, stops and resets on one click, keeps time…
- Click Speed Test Click as fast as you can for five seconds and get your…
Most copied
- 10 Minute Timer
- 5 Minute Timer
- 20 Minute Timer
- 1 Minute Timer
- 30 Minute Timer
- 30 Second Timer
- Reaction Time Test
- 1 Hour Timer
- 45 Minute Timer
- 2 Hour Timer
- 15 Second Timer
- Click Counter
- 90 Second Timer
- Spacebar Counter
- Stopwatch With Laps
- 15 Minute Timer
- 10 Second Click Test
- 3 Minute Timer
- 1 Second Click Test
- 2 Minute Timer
- 4 Minute Timer
- 12 Minute Timer
- 25 Minute Timer
- 5 Second Click Test
The stopwatch above
It counts up from zero and keeps going until you stop it. That is the tool you want when the length is the answer – how long the boil took, how long the call ran, how long a lap took. If you need to split one run into parts without stopping it, use the stopwatch with laps. The rest of what it can do is on the stopwatch page.
Countdowns
A timer is the other direction: you know the length, you want to be told when it is done. The timer opens on five minutes, which is 300 seconds, and every common length has its own page so the number is already in the box when it loads. They run from 10 seconds up to 2 hours.
- 1 minute and 2 minutes – the short ones, sixty and a hundred and twenty seconds.
- 10 minutes – the standard short break, and the length a pot of tea is usually given.
- 25 minutes – a pomodoro, the work block people run before a break.
- 45 minutes – roughly one school period.
Clicks and reactions
The click speed test counts how many times you can click inside a fixed window and turns that into clicks per second. Five seconds is the usual window; there are shorter and longer ones, down to one second and up to a hundred. If you want a plain tally with no clock at all, use the click counter.
The reaction time test is the odd one out. It measures the gap between a signal on your screen and your click reaching the browser, which includes the screen, the mouse and the browser itself, not just you. Typical human visual reaction sits roughly in the 200 to 300 millisecond range, and a result outside that says as much about the hardware as about the person. It diagnoses nothing.
How accurate any of this is
Every clock here reads the system clock, so a tab left in the background still keeps correct time and comes back with the right number. The alarm is the fragile part: a phone that sleeps may never make the sound. Do not rely on any of these for anything where missing the moment matters – medication, an exam, a cooking step that burns. Use something that rings on its own.