Downtown Crazy Days is a two-day promotion tied to the Downtowners Street Fair in Downtown Bismarck, featuring special deals, coupons, and promotions at multiple participating downtown businesses alongside the arts, crafts, and food vendors of the Street Fair. The event runs in the downtown core on Friday, September 18 from 10:00 AM to 8:00 PM and Saturday, September 19 from 9:00 AM to 6:00 PM as part of the Downtowners Street Fair 2026. It is oriented toward local shoppers and families looking to support small businesses and explore downtown merchants during the fair hours. Vendors and activities are spread throughout Downtown Bismarck, and no separate ticketing or admission fee is indicated for Crazy Days itself.