Tika, sorry, you are right and Air Tahiti Nui is not on seatguru.com. Air France is, though, and their seating chart for the Airbus 340 is similar to Air Tahiti Nui's. Two on each side, and then four in the middle, except for the back four rows, where there are just three in the middle. The airline's hours are from 6 am central to 5:30. Good luck!