The itinerary suggests it's due in Melbourne on Wed 29th, arrive 7am, depart 5pm...
Looking at the trackers, they're all suggesting it'll arrive at 10am on the 28th, Tuesday?, a day early... Odd...
ETA:November 27, 23:00 (UTC I assume)
https://www.cruisemapper.com/?imo=9104005
ETA: Nov 27, 23:00 (in 12 hours) (UTC I assume)
https://www.vesselfinder.com/vessels/details/9104005
Reported ETA: 2023-11-28 10:00 LT (UTC +11)
https://www.marinetraffic.com/en/ais/details/ships/shipid:370965/mmsi:310327000/imo:9104005/vessel:GRAND_PRINCESS
It's position suggests it will probably arrive tomorrow also...
Edit: from the Roll-Call, they say it's 'racing' to Melbourne to avoid the storm:
Hmmm... https://www.windy.com/?-41.533,158.247,6