India Four Two, I will hazard that airport is somewhere in Eastern Europe. Maybe one of the airports of Prague, but not Ruyzne.
Yes, Niue is the other side of the dateline from NZ. Polynesian Airlines used to fly from Samoa to Tonga to Niue and back to Samoa using a HS748. Tonga is 13 hours ahead of UTC (yes, everyone says they are cheating!) so if you struck it right you left Samoa yesterday to fly to Tonga tomorrow and arrive in Niue today, UTC days. If a passenger asked the barefoot Polynesian cabin crew "what day will we arriving in .....?" she would respond "I will tell you when we get there!"