We need to define the shape of the schedule in order to have an idea of the slots available. What about 9.00 Doors open. 10.00 - 13.00 Sessions. The default setting is one-to-many sessions of 25' + 5' break in 3 tracks. Some exceptions can swap 2 slots in a 55' session. Keynote sessions with no parallel tracks are placed at the beginning of the morning. 13.00 - 14.30 Lunch 14.30 - 15.30 Lightning sessions, 5' each. 15.30 - 18.00 Sessions, with a preference to more interactive and informal settings. 25' or more. Always several tracks. Feeling that it's ok to miss a 30' slot to go for a coffee and chat with colleagues outside. At what time would the official schedule end on Sunday? 18h might be too late for many having to go back to their homes.