Simple, fast, and private
This stopwatch runs entirely in your browser using native JavaScript timing APIs. There is no login, no server processing, and no saved history unless you choose to record it yourself.
Precision browser stopwatch
Back to ClockExact Time with Seconds — Current Local Clock
Check your exact local time right now down to the second. Sync your watches, track live events, and get second-accurate time updated every second directly in your browser—no location permission or tracking required.
00:00:00.000
About this time tool
Use a clean online stopwatch with seconds and precise browser timing for workouts, classrooms, calls, and production timing.
- The main interface is available in the initial static HTML, not only after JavaScript runs.
- The live clock uses your browser and device time zone support.
- No account, GPS permission, or external time API is required for the core display.
Frequently asked questions
What is this stopwatch for?
Use it to measure elapsed time with seconds and milliseconds in your browser.
Is the stopwatch private?
Yes. Stopwatch timing happens on your device and does not require a server account.
Why does the stopwatch show milliseconds?
Milliseconds help with short events, tests, practice sessions, and timing checks where seconds alone are not precise enough.