Hawaii is about half way to New Zealand from Vancouver BC.
cuba
Sri Lanka
Tonga is in the South Pacific, halfway between Hawai'i and New Zealand
auckland new zealand
The halfway point between Calgary, Canada and New York, New York is Minneapolis, Minnesota.
Omoka, Cook Islands.
Dansville, New York is about halfway between Wilkes Barre Pennsylvania and Toronto, Ontario Canada
New Milford, PA
1mm
In June, New Zealand is 14½ hrs. ahead of Newfoundland. In December, New Zealand is 21 hrs. ahead of most of British Columbia.
Halfway between New York and New Zealand is the Pacific Ocean. To be more precise, the point in the middle is located pretty much halfway between Mexico City and Tahiti (a little bit closer to Tahiti than to Mexico City, actually). I could not find any island close to this point on my maps, so it appears it's just plain ocean there.
In air miles, it is about 7,300.