I've always wondered what it means when people say I've got 100 hours on a motor. Is it defined as strictly running time or would you define it as an all day fishing trip? If I go fishing and I'm anchored out with the motor turned off 5 out of the 6 hours I'm on the water, in theory, the motor has one hour on it, correct?

Or does the motor at that point have 6 hours on it because it was obviously in the water for 6 hours?? Just something I've wondered about.