Online Stopwatch
A free online stopwatch with laps to the hundredth of a second, a full screen mode, and keyboard shortcuts. It runs in your browser, no account needed.
Keyboard: Space starts and stops, L records a lap, R resets.
A stopwatch for focused work
Start the stopwatch when you begin a task and stop it when you finish, using laps to mark the parts along the way. Everything runs in your browser, so nothing you time is saved or sent anywhere.
A stopwatch is great for a single task in the moment. When you want those minutes to become a record you can report and bill, Sandtime.io tracks time per project and turns it into clean timesheets.
Stopwatch questions
Does it keep time if I switch to another tab?
Yes. The elapsed time is the difference between two timestamps rather than a count of ticks, so a background tab that stops repainting still shows the right time the moment you come back to it.
Is my time saved if I reload the page?
No. Nothing is stored and nothing leaves your browser, so reloading or closing the page starts you from zero. Use Copy laps before you close it: the laps paste into a spreadsheet as three columns.
What does the lap button do?
A lap records the split without stopping the clock, which is the point: you can mark the end of one part of a task and keep timing the next one.
Can I control the stopwatch from the keyboard?
Yes. Space starts and stops the clock, L records a lap, and R resets it. The keys work in full screen too, and they do nothing while you are typing in a field.
Can I show the stopwatch full screen?
Yes. Full screen shows only the clock, sized to fill the screen, which makes it readable from across a room or on a projector. Press Esc to leave it.
How precise is the display?
To the hundredth of a second. The hours segment appears once you pass an hour, so short timings stay easy to read.
When should I use a time tracker instead?
A stopwatch times one thing in the moment and forgets it. If the minutes need to become a record you can report on or bill for, they have to be attached to a project and a client, which is what a time tracker does.
Turn timed work into timesheets
Sandtime.io records time per project as you work and rolls it into reports and invoices. Free for unlimited users, without surveillance.