Upvote:1
You don't need a visa, provided you remain in the international transit area of the airport.
Timatic, the database which airlines use to verify passenger travel documents, states:
TWOV (Transit Without Visa):
Visa required, except for Passengers with a confirmed onward (Air-to-Air or Air-to-Sea) ticket to a third country within 48 hours. They must stay in the international transit area and have documents required for the next destination.
You didn't ask, but in regard to New Zealand, if you have a visa but there is no visa label in your passport, you need to bring your visa approval letter.
Visa Issuance:
New Zealand issues both printed visa labels and label-less visas. Printed visa labels are inserted into a passport or travel document. There is no physical evidence of a label-less visa in the passport or travel document but all passengers must carry a printed visa approval letter that confirms the details of their visa.The New Zealand visa record is held in Immigration New Zealand's systems and authority to board should be verified using the NZ APP system. Airlines not connected to NZ APP that carry a passenger on an earlier leg of their journey, can use TIETACNZ, or view the printed visa label or the visa approval letter to identify any travel conditions, such as whether the person is exempt from the requirement to hold a return/onward ticket.