En 365Edit

Could you clarify what En 365 refers to? It could mean several different things (for example, a European standard EN 365 in a particular field, a historical year in a specific calendar, or a distinct concept or organization). If you can specify what En 365 denotes and the scope you want (historical, technical, cultural, political, etc.), I’ll write a well-structured encyclopedia article in the requested style with the appropriate headings, inline encyclopedia links, and a See also section.