27 November is the 331th day of the year (332th in leap years). There are 34 days remaining.
- 1991: The Gryffindor first-years have an Astronomy Class at midnight, on the top of the Astronomy Tower.
- 1993: A Quidditch match takes place: Ravenclaw flattens Hufflepuff.
- 1998: Wizard Demetrius Prod dies "noisily" after an argument with his wife Elsie over the washing-up. His obituary is not published on the Daily Prophet until the 8 February of the next year.