The clip, created by the American journalist Charli James, shows the cleaning crew diligently wiping the trays, sweeping the floor and clearing the seats. Each worker covers one 100-seat car, and takes 12 seconds to clean a row. They only have 7 minutes before the train must take the next set of passengers. More than 300 bullet trains depart daily from Tokyo station, transporting nearly 400,000 passengers.
