fix tvnz time for nzst/nzdt

apiserver/misc/time.py

@@ -1,10 +1,16 @@
 import pytz
+from datetime import timedelta
 import dateutil.parser
 
 
 TZINFOS = {
     'NZDT': pytz.timezone('Pacific/Auckland'),
-    'NZST': pytz.timezone('Pacific/Auckland')
+    'NZST': pytz.timezone('Pacific/Auckland'),
+}
+
+TZINFOS = {
+    'NZDT': 13*60*60,
+    'NZST': 12*60*60,
 }
 
 def unix(date_str, tz=None, tzinfos=TZINFOS):