Auckland is widely described as the first major city to welcome the New Year because of its position near the International Date Line.
Auckland, New Zealand, uses New Zealand Standard Time during the Southern Hemisphere summer and is among the earliest large urban centers to reach January 1. The city celebrates with fireworks around the Sky Tower, the tallest freestanding structure in the Southern Hemisphere.
The phrase “first major city” is a media shorthand rather than a claim that Auckland is the first inhabited place on Earth to enter the new year. Small Pacific islands and territories farther west in the relevant time-zone sequence can reach midnight earlier, including locations in Kiribati.
Auckland is sometimes confused with Wellington, New Zealand's capital, or Sydney, Australia, which is also famous for its New Year's Eve fireworks. The exact order depends on time zones, daylight-saving rules, and how “major city” is defined.