As far as I know, the summits (C-API, WASM, Rust) should be all-day 360 min sessions. I see two potential problems: 1. On their session page, they appear as 180 min instead of 360 min, e.g. https://ep2025.europython.eu/session/c-api-summit This probably should be fixed on pretalx. 2. On the schedule, they appear very short, like 45 min or something, instead of full day. 