Around the World in 80 Days is a classic adventure novel by the French writer Jules Verne.

In the story, Phileas Fogg of London and his newly employed French valet Passepartout attempt to circumnavigate the world in 80 days on a £20,000 wager (equal to about £2 million in 2016) set by his friends at the Reform Club. It is one of Verne's most acclaimed works.

The story starts in London on Tuesday, October 1, 1872.

Phileas Fogg is a rich British gentleman living in solitude. Despite his wealth, Fogg lives a modest life with habits carried out with mathematical precision. Very little can be said about his social life other than that he is a member of the Reform Club. Having dismissed his former valet, James Forster, for bringing him shaving water at 84 °F (29 °C) instead of 86 °F (30 °C), Fogg hires a Frenchman by the name of Jean Passepartout as a replacement.

At the Reform Club, Fogg gets involved in an argument over an article in The Daily Telegraph stating that with the opening of a new railway section in India, it is now possible to travel around the world in 80 days. He accepts a wager for £20,000 (equal to about £1.6 million in 2015) from his fellow club members to complete such a journey within this time period. Accompanied by Passepartout, Fogg departs from London by train at 8:45 P.M. on October 2; in order to win the wager, he must return to the club by this same time on December 21, 80 days later.