Beware a favourite ATC trick in SYD is as the 0600 end curfew time is approaching, and you have started the approach, they may clear you to turn and lock onto the ILS at a time that would have you landing before the cutoff. Presumably after landing, they will then tell you that you have violated the curfew and will be reported. On a couple of occasions I have had to decline an approach because of curfew reasons, to the consternation of the copilots. Bit sad really. Long ago, they used to clear us to land on the intersecting runway at a prohibited time. I can't understand that sort of behaviour, but it is not unusual.