I've written about this extensively in my prior posts. It was realy eye-opening to me to realize that most pioneers were either lying on their time cards or using ludicrous "creative" techniques that were patently against the rules to pad their field service reports. There was one regular pioneer whom I never saw out in service. Yet he once told me that as long as your neighbors saw you with a tie on you could count your time because you were giving testimony by the simple fact of being in service clothes.
I wasn't the type of guy who carried around a stop watch, but there were clear rules on the subject. Almost all pioneers found it perfectly acceptable to keep counting time even during a 2 hour lunch break. If I ever questioned them about it, they would find ridiculous way of justifying it, such as saying that so-and-so 5 year old was present and you could keep counting time so long as there was an unbaptized person present and obviously the 5 year old qualified as such. Most of the time, though, there wasn't even an attempt to justify themselves.