Traveling to New Zealand

Hi,
Can somebody help me? Do I need a free visa / 24 hours direct transit?
I'm flying to new Zealand. From Amsterdam (Netherlands) - Guangzhou (7,5 hours stop) - Auckland (New Zealand).
The way back I'm going from Auckland - Guangzhou (2 hours stop) - Beijing (Peking, 2 hours stop) - Amsterdam.

So yes, where can I get it?

Kindly regards,
Hermien Nagelholt