17 August is the 229th day of the year (230th in leap years). There are 136 days remaining until the end of the year.
- 1993: Harry Potter enjoys his "strange new freedom" at Diagon Alley. He eats breakfast in the Leaky Cauldron and after breakfast, spends the long sunny days exploring the shops and eating on the pavement cafés. Florean Fortescue helps him with his History of Magic homework and gives him free sundaes every half an hour.
- 1994: Arthur Weasley, along with his sons Ron, Fred and George Weasley, pick up Harry Potter from Number 4, Privet Drive in order to take him to the Quidditch World Cup the following day.
Behind the scenes
- 1968: Helen McCrory, the actress who plays Draco Malfoy's mother Narcissa Malfoy, is born.
- 1970: Rupert Degas, a British actor who provided the voice of Lord Voldemort, Rubeus Hagrid and Severus Snape in the video game adaptation of Harry Potter and the Deathly Hallows, is born.