Your domestic flight within NZ requires check-in at least 30 minutes before departure. For international flights, a typical minimum lead time is 90 minutes.
Qantas says (assuming economy class):
- recommended 120 minutes
- minimum 90 minutes
- at least 30 minutes for domestic flights
- no later than 60 minutes
The Auckland international terminal isn't anywhere near the size of LAX or DFW. Wait times for security are usually not very long. However, there is an extra secondary security screening for flights departing to the USA. This usually isn't very long either, but I would allow at least 2 hours for your NZ-Hawaii leg.