FTL?
Let’s assume a ‘friend of a friend...’ is scheduled to fly a charter from Rome to NY departing at 20:00LT. The operation wants the crew to position to Rome from Nice early the same morning for them to rest 11 hrs. in Rome.
How can this be legal?
Yes, the crew has proper accommodation and facilities to rest. But not all people might be able to go back to sleep at 10 in the morning just because they were up at 5.
In this case I am sure the crew ends up a lot more tired during the night flight than if they positioned they day before.