Time formatting in Activity Monitor

Question

What's the time formatting in the CPU Time column?

so for example 1:07.75

Is it hh:mm.ss? or is it 1min 7sec 75ms

Answer 1

If it were h:m:s there would be a colon before the seconds, but it can't be seconds because in your screenshot there are 75 of them. Neither is it milliseconds since there are only 2 digits. It's 75 hundredths of a second.

Picture showing longer-running processes, more clearly indicating hh:mm:ss.ss/100