Rex Havoc: yes you are right about that, the reference of 'at least' can only be found in the cabin crew part. Having said that, as long as we share transport, the flight deck can't stop working before the cabin crew. As long as we are there, they do work under our authority, hence we are on duty as well, even if we are just waiting to get off the airplane. It is a point of view that I can defend easily towards our management in case of discussion.
Mullah: understanding what you read obviously isn't your forte.. Where did I mention that duty time is limiting? And the 30 minutes is not 'just the beginning of the subsequent rest period'. It IS the end of your DUTY period, which means it needs to be used for minimum rest calculation. It is also the reason why after a diversion where you run out of flight duty, the company can passenger you back to DXB with a relief crew if that was arranged. You might be out of FDP, but you are still on duty, and this time needs to be counted towards your rest and max DUTY periods as well. (55 in 7 etc...)
Flight Duty Period and Duty Period are two different things, one has strong limitations because they don't want you to flick switches after a certain time working, the other one is plain and simple your duty period...