Stopwatch
Start counts up as minutes, seconds, and centiseconds, and the button switches to Pause. Lap writes the clock reading at that click, newest first. Reset clears the time and the list.
How to use
- Click Start. The label changes to Pause and the display leaves 00:00.00. The format is minutes, a colon, seconds, a dot, then two centisecond digits.
- Click Pause to freeze the reading. The label returns to Start, and the next Start continues from the same elapsed time rather than from zero.
- Click Lap while the clock is running, or after a pause once some time has accumulated. Each row is Lap, a number, and the time at the click. New rows are inserted at the top. Lap does nothing at a fresh 00:00.00.
- Click Reset to stop the clock, return the display to 00:00.00, empty the lap list, and set the button back to Start.
When it helps
Use it for a speech, a drill, or any interval you want to count upward. A lap is the total so far, not the gap since the previous click. Subtract two rows yourself if you need that split.
A fixed work block belongs on the Pomodoro timer, which runs Focus from 25:00 and then Break from 5:00 with no fields to edit. Counting down toward a duration or a calendar moment belongs on the countdown timer.
Limits
Laps are drawn into this open tab only. Refresh, leave the page, or close the tab and the list is gone. There is no export, no lap name, and no saved session that keeps running after you go.
Minutes are not wrapped into hours. Ninety minutes shows as 90:00.00, not 1:30:00. Reset is the only clear control, and it wipes the time and the laps together. You cannot reopen yesterday's splits.
Questions
Is a lap the time since the last lap?
No. The row stores the stopwatch reading at the click, which is total elapsed time. The newest row sits at the top of the list.
Can I add a lap while paused?
Yes, if some time has already elapsed. Before the first Start, when the display is still 00:00.00, Lap is ignored.
Will the laps still be here tomorrow?
No. They disappear when you leave the page. Copy the lines out if you need a record of the session.