'Pacific/Auckland' time = UTC time

Question

I've been trying to fix the time on my Ubuntu 16.04 host but can't get the time zone corrected. For some reason Ubuntu thinks Pacific/Auckland time zone is the same as UTC, and do not have a 12 hour offset. 'Pacific/Auckland' time zone is supposed to be UTC +12

sudo dpkg-reconfigure tzdata

Current default time zone: 'Pacific/Auckland'  
Local time is now:      Tue Sep 26 09:08:37 UTC 2017.  
Universal Time is now:  Tue Sep 26 09:08:37 UTC 2017.  

timedatectl status

      Local time: Tue 2017-09-26 09:13:45 Pacific  
  Universal time: Tue 2017-09-26 09:13:45 UTC  
        RTC time: Tue 2017-09-26 09:13:45
       Time zone: Pacific/Auckland (Pacific, +0000)
 Network time on: no
NTP synchronized: no
 RTC in local TZ: yes

Warning: The system is configured to read the RTC time in the local time zone.
This mode can not be fully supported. It will create various problems
with time zone changes and daylight saving time adjustments. The RTC
time is never updated, it relies on external facilities to maintain it.
If at all possible, use RTC in UTC by calling
'timedatectl set-local-rtc 0'.

Can someone tell me how to fix this?

Just did a

sudo ntpdate nz.pool.ntp.org  

and got
25 Sep 22:38:17 ntpdate[1422]: step time server 130.217.226.49 offset -43211.035177 sec
and did
date
Mon Sep 25 22:49:05 Pacific 2017
But the current time is 11:49am.

Answer 1

Found the problem. My /usr/share/zoneinfo/NZ got corrupted by a rouge unit test. The "NZ" file was originally a binary file and got replaced by a text file with "NZST-12NZDT,M9.5.0,M4.1.0/3"
I copied the NZ file from another machine and that fixed my problem.

timedatectl status

now says:
Local time: Sat 2017-09-30 02:33:09 NZDT
Universal time: Fri 2017-09-29 13:33:09 UTC
RTC time: Fri 2017-09-29 13:33:12
Time zone: Pacific/Auckland (NZDT, +1300)
Network time on: yes
NTP synchronized: no
RTC in local TZ: no