2023 Stranger Things Square Calendar. This calendar is based around the new fourth series, with new scenes and characters featured throughout. However you are sure to recognise Joyce, Jim, Mike, and Eleven to name a few. This official wall calendar has plenty of room for all your important 2023 dates in the date panels provided Product Dimensions: 305 X 305 MM Official Stranger Things 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.