From the 1st of July 2009, the laws of chess have been changed to allow tournament organisers to set a forfeit time for their own events, rather than the previous case where it has been 1 hour. However the rule change also states that the default time shall be 0 minutes, unless the organisers specifies otherwise.
So a couple of questions in terms of what will happen in practice.
(a) If an organiser fails to publish a set forfeit time in their entry form/tournament conditions does it have to be 0 minutes or can the chief arbiter simply announce that the forfeit time will be x minutes before the first round?
(b) Can a sanctioning body for a tournament (eg a national federation / state association) set a general forfeit time that will then cover all events under their control?
(c) What do you think is a sensible forfeit time?