Eyewear with Attitude.
All about TART
"Why not?" returned the pilot. "The San Francisco steamer does not start from Yokohama. It puts in at Yokohama and Nagasaki, but it starts from Shanghai."
"You are sure of that?"
"And when does the boat leave Shanghai?"
"On the 11th, at seven in the evening. We have, therefore, four days before us, that is ninety-six hours; and in that time, if we had good luck and a south-west wind, and the sea was calm, we could make those eight hundred miles to Shanghai."