Clotted, the 767 operates on the Long haul Award which is based on going to London and back every few weeks. Therefore it uses credited hours instead of stick hours. Min of 5.5 credited hours per day.
Credited hours are paid at a lower rate than the stick hours that the 737 drivers are paid by. No one get paid more for night hours, you work less days if you fly a lot of night hours.... It is a protection built in for long haul flying.
No pilot in the world flies 40 hours per week (2000 hours per year) ..... the reference to it is redundant.