I’ve been asking myself that question for a while now, and I’m still not sure of the answer.
Like many runners, I use a tracker app when I go running. This app tracks my route and time, which then give me my overall pace. It also has this great invention called Auto Pause, where it pauses tracking me when I stop running and resumes when I do. It’s great when I am forced to stop, like at a traffic light for example.