Online Stopwatch
High-precision timing engine with sub-millisecond accuracy and lap analytics.
list_altLap Log(0 recorded)
No Laps Recorded
Technical FAQ
How accurate is the timing engine?
Will it continue if I switch tabs?
Can I export my session data?
Measuring Time Instead of Guessing It
What gets timed, really
People underestimate task time by 30–50% when guessing. Measured time fixes estimates, bills, and training:
| Use | What the measurement buys |
|---|---|
| Freelance work sessions | Honest hourly billing and better quotes |
| Workout sets and rest intervals | Consistent rest = comparable sets |
| Speech and presentation rehearsal | Fitting the slot before the real audience |
| Cooking and lab procedures | Repeatability |
| Process audits (how long does X take?) | Data for the 'we need to automate this' case |
Laps: the underused feature
The lap button splits a session without stopping it — rounds of a circuit, sections of a speech, stages of a process. Afterwards the lap list shows where the time went: rehearse a talk once with a lap per section, and you'll know precisely which part to cut when you're four minutes over. The same trick turns “this report takes forever” into “data collection is 80% of it” — which is the difference between complaining and fixing.
Count up, count down, or cycle
Stopwatch for “how long did it take”, the countdown timer for “how long until”, and the pomodoro timer for alternating work and rest on a schedule. Typing speed — one specific timed measurement — has its own instrument in the typing test.