National Cinnamon Bun Day is officaly celabrated on October 4th every year, this will be a belated celebration taking place one day later on October 5th! The history behind National Cinnamon Bun Day is in 1999, the Home Baking Council of Sweden celebrated its 40th Anniversary with the first Cinnamon Bun Day. Since then, the observance has spread around the world. It is now observed annually on October 4th.Come on out and enjoy some cinnamon buns and socialize with other geocachers!