8.8.2026 10:30-13:00. Helsinki Central Library Oodi Töölönlahdenkatu 4, floor 2, group room 7. HTML Day 2026 is an event in which people get together and write HTML documents... We’ll start with some fun, raw, quirky ideas to write and celebrate HTML. Space is limited, so if you’re coming please contact to Yu. Bring yourself, and something to write HTML on. If not in Helsinki? Check out html.energy/events.html.