National Carbonated Beverage With Caffeine Day Cards

Not an official federal or widely recognized holiday. This informal/observance day refers to celebrations or promotions of carbonated beverages that contain caffeine (for example, cola-style sodas and some caffeinated energy sodas). Its origins are unclear and it appears to be a social-media/marketing-driven observance used by brands, fans, and niche calendars to highlight caffeinated soft drinks or run promotions. Because it is not a standardized holiday, there is no single authoritative date and practices vary; observers may also use it as an occasion to discuss caffeine content and health considerations.