Your max scheduled duty period can be up to 13 hrs but is often less. Max duty for each day of your trip is listed on the righthand side of your rotation right next to your scheduled duty time. That max duty time is extendable by 2 hours per the contract. The max duty time per contract that you can be on duty is 15 hrs based on a 13 hr scheduled plus 2 hour extension. Just remember that the max duty time listed on your rotation is what you add 2 hours too. 16 hrs is an FAR limit. I will never go beyond 2 hours above my max scheduled duty time on the rotation.

Denny