EPSG:2193

WGS84 Bounds: 166.3300, -47.4000, 178.6000, -34.0000 var bounds = new OpenLayers.Bounds(166.33000000000001, -47.399999999999999, 178.59999999999999, -34.0);
Projected Bounds: 983515.7211, 4728776.8709, 2117458.3527, 6223676.2306
Scope: Large and medium scale topographic mapping and engineering survey.
Last Revised: 2008-04-04
Area: New Zealand - mainland

NZGD2000 / New Zealand Transverse Mercator 2000 (Google it)