2023 Harry Potter Mini Calendar. Each month features a character from the eight Harry Potter fantasy films from Harry Potter, Ron Weasley, and Hermione Granger to name a few. This mini calendar format is designed for smaller wall spaces but has room for all your important dates for 2023 in the date boxes provided. Product Dimensions: 178 X 178 MM Official Harry Potter 2023 Mini Calendar Product Danilo is the leading publisher of officially licensed calendars, diaries, greeting cards, gift wrap and gift bags in the UK. We are a family run company that’s been operating for more than 40 years. Our licenses range from baby to adult. All the paper we use is responsibly sourced and we only work with suppliers and manufacturers that meet our stringent ethical requirements.