The Staten Island Ferry is the world's busiest ferry route, carrying approximately 20 million passengers on the 5.2-mile (8.4 km) route between Staten Island and Lower Manhattan and running 24 hours a day. Other ferry systems shuttle commuters between Manhattan and other locales within the city and the metropolitan area.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): How many hours a day does the The Staten Island Ferry run?
24