It was initially intended to be a 24 hour conference, starting at 12 noon (Pacific time) on Saturday, and going through until 12 noon on Sunday (which is Monday in Australia). In the end, because of the response from people wishing to present, it has ended up being longer than 24 hours, but still goes from 12 noon (Pacific) on Saturday, through until Sunday evening (Pacific) - again, on Monday in Australia.