Spot on HKF, several weeks ago, clearance received for departure off RWY24 due works in progress RWY21. On requesting push approval, change of RWY, 21 now operational. Requested 24 being a lazy type, advised that it was "No longer available due noise abatement procedures ".
Ok if It was 0300,however,this was 1230 local on a saturday arvo!
On a similar vane,why is it that most Countries I've visited over the years, given critical infrastructure requirements, work carries on 24/7.
In good old Oz it's 9 to 5 Mon to Fri apparently.
Laughable Joke,
Lucky Country means lucky nobody is held accountable.