Auckland is 17-18 hours ahead of New York, depending on Daylight Saving Time. When it's Monday 9:00 AM in New York, it's already Tuesday 2:00 AM (or 3:00 AM) in Auckland.
The difference varies because New Zealand and the US observe DST at different times of year (opposite seasons). Auckland uses NZST/NZDT while New York uses EST/EDT.
Challenging overlap. Try 5:00 PM - 7:00 PM New York, which is 10:00 AM - 12:00 PM next day in Auckland. Evening calls from NYC reach Auckland's morning.
Auckland is New Zealand's largest city and a gateway to stunning natural beauty. Despite the distance, many tech and film industry professionals need to coordinate between NYC and Auckland regularly.