[tz] bug in export TZ where day light savings spans Dec 31st?

[Zefram]

david singleton wrote:
> export  TZ="NZST-12.00:00NZDT-13:00:00,M10.1.0,M3.3.0"
                     ^
          this dot should be a colon

>I was hoping you could help me understand what is going on?

I think that typo is all.  glibc is treating your setting as TZ="NZST-12",
silently dropping everything from the dot onwards.  It doesn't have much
room to signal the error, unfortunately.

-zefram