Stranger Things Day is a holiday dedicated to the Netflix original series, Stranger Things. It is celebrated on November 6, the day Will Byers went missing in the show's first season. The first ever Stranger Things Day was announced on November 1, 2018 via a special trailer released across the show's social media accounts.
- The first ever Stranger Things Day was held on November 6, 2018.
- A special video from the set of the third season was posted on the show's social media accounts, showing several cast members wishing fans a Happy Stranger Things Day.
- The Stranger Things attraction at Universal Studios was re-opened in celebration of Stranger Things Day.
- The long-awaited blooper reels for all three seasons were released.
- The title of the first episode of the fourth season was revealed.
- An artwork of the first episode of Season 4 was released.
- The fourth teaser for Season 4 was released.
- The titles of the remaining episodes of Season 4 were revealed.
- An artwork of the Stranger Things world was released.