Fogg is described as follows:
Phileas Fogg was one of those mathematically precise beings who, never in a hurry and always ready, are economical in their steps and movements. He never made an unnecessary step, always went by the shortest way. He made no superfluous gesture, and was never seen to be moved or agitated. He was the most deliberate person in the world yet always reached his destination at the exact moment.
He always leaves his house for his club at 11:30. The question becomes, why does Fogg's almost obsessive precision matter? Why should we care?
The answer is central to the book: Fogg's precision about time is why he feels confident he can make it around the world in eighty days. Eighty days seems long to us, but in 1873, a period well before air travel, it represented very speedy movement indeed. Because Fogg is so precise and methodical, he can bet his 20,000 pounds with confidence. However, as we learn through the course of the story, there is more to life than rational, mathematical precision. Fogg is more than merely a machine. His human sympathy and compassion create delays in his journey and, in the end, are more important than precision or profit.