What is a chronograph split time?

A cumulative split is the total time from the start to a given mark. A lap or segment time is the duration since the previous mark.

How do I enter times?

One time per line using mm:ss, hh:mm:ss, or plain seconds.

A split-seconds chronograph can freeze one seconds hand to read a split while another hand keeps running.

Input mode Times — one per line (mm:ss, hh:mm:ss, or seconds)

Cumulative split — total from start to this mark
Lap / segment — time since the previous mark
Rattrapante — split-seconds hand can freeze to read a split while the chrono keeps running
Standard chronographs still let you note times at each pusher event if you record them

Cumulative 0:45, 1:28, 2:10 → laps 45s, 43s, 42s.

Educational timing helper. Not a certified race-timing system.

What is a split time? Usually the running total at a mark; laps are the gaps between marks.

Formats accepted? mm:ss, hh:mm:ss, or raw seconds — one value per line.

Rattrapante? A mechanical way to read a split without stopping the whole chronograph.