Well, it is listed here: http://www.siggraph.org/asia2009/for_attendees/technical_pap... "Friday, 18 December | 9:00 AM - 10:45 AM | Room 301/302" Not sure what to think. Maybe they're writing in past tense in the same way sports sites write "such and such team played on Tuesday" even though it was Tuesday at the time of writing.