This has been an issue forever. Trainingpeaks only shows total "Elapsed Time". There is no option to even display actual "Moving Time" vs. "Elapsed Time". When a ride is synced to a workout, the Planned vs. Actual time is not quite accurate as it counts elapsed time towards the planned time, not moving time. There are many reasons why one would need to stop mid-ride - to fix a mechanical, relieve oneself, eat, change layers, or just wait up for riding buddies. This is true especially in long rides.

This non-moving time is included in the total riding hours for the week, as well as counting towards compliance for a workout when compliance is calculated by time. I don't find that to be very useful or helpful.

At least provide actual moving time as a display field, and ideally allow the option to calculate total hours and workout compliance by actual moving time.