I wonder how many pilots are actually logging the time from the moment the aircraft moves opposed to the moment the engine is started?
In the US, Most people in commercial operations are. Typically the Hobbs meter is hooked upto the collective, and there may be two Hobbs meters installed. It was not until the arrival of the Robinson that all these "logging of time" questions started. I could probably add another 1,000 hours if I was to go back and log all the time from when the aircraft started.