[Quix]

Australia, NZ, Japan, Hong Kong, Singapore???

I don’t recall those flight times. NZ and Aus seem a bit far unless he’s going very fast.

[itsahoot]

Gulfstream V - Wikipedia, the free encyclopedia
The Gulfstream V is a business jet aircraft produced by Gulfstream Aerospace. ... The Gulfstream G550 was formerly known as the Gulfstream V SP (G-V SP). .... Maximum speed: Mach 0.885; Cruise speed: 488 knots (0.85 Mach, 904 km/h) ...

Don't know where he is going nut this is his speed.