Didn’t know a Gulfstream IV could do this? With time changes actual flight time was over 10 hours, right?
Photo as N811DF was recently registered, here it is carrying its previous registration N540CH. (I recall a previous thread on this aircraft!)
8:50 if you use the track log.
I’ve heard of 10:15 in a G4 but that was a ferry flight. Normal max endurance is more like 9:30ish.
John in Paris
The 5:25 flight time couldn’t be correct. It would take nearly that long to
reach the United States or Mexico coast.
Someone had a nice 10 day vacation in Tahiti 8)
The G-V can do up to 15.5 hrs… to many for me…
Lynn
a 60-80+ knot tailwind helps 
E-bay’s G-V did one from San Jose to here (MBPV). 6hrs one way, 6:26 back… one of the longer flights into here that I can remember, most others are at best 4 hrs long…
Go G-V 
My buddy had the pleasure of doing this one. Thats a long ride!