Commercial airline pilots cannot legally fly 7 consecutive days without adhering to strict flight time limitations and mandatory rest requirements governed by national aviation authorities. Regulatory frameworks mandate specific cumulative flight hour caps over rolling 7-day, 28-day, and annual periods, alongside mandatory minimum rest hours between consecutive shifts. Airlines utilize sophisticated scheduling software to ensure crews receive required multi-day rest periods, preventing chronic fatigue and ensuring strict compliance with safety regulations designed to protect passengers and flight deck operations.