This could be interesting !!
Wondering how the new "Perth Controlled Departure Times" will mix with "Sydney Controlled Arrival Times" ?
"So sorry.....Your (timetable scheduled) departure time from Perth has been delayed 45 minutes, but on the bright side, we've got a slot for you in Sydney, 15 minutes earlier to your (timetable schedule) arrival time"
Warp Speed 2 Scotty !
ST
( Nah, that wouldn't happen, AirServices would be better coordinated then that ??)