If I understand correctly from your description, current and future timestamps for Concordia and Mario Zucchelli are handled by Australia/Perth and Pacific/Auckland, respectively. Notwithstanding any historical differences which we're not aware of, it seems there is no need for separate entries here.

Although in the past we had, for example, a entry for Antarctica/McMurdo that was separate from Pacific/Auckland, in recent months there has been an effort to coalesce/link such entries so as to avoid duplication.

--
Tim Parenti

On 11 December 2013 09:14, Paride Legovini <paride.legovini@concordiastation.aq> wrote:

Dear timezone database maintainers,

in 2011 you received a request from Paolo Perfetti to add two research stations located in Antarctica to the timezone database, Concordia:

https://en.wikipedia.org/wiki/Concordia_Station

that follows the Australia/Perth timezone, and Mario Zucchelli,

https://en.wikipedia.org/wiki/Mario_Zucchelli_Station

that follows New Zealand's NZST.

Here is the original request:

http://lists.debian.org/debian-glibc/2011/05/msg00157.html

As I'm currently located in Concordia (and I will be for a year) I strongly second Paolo's request. As there are already other stations in the database I think that it shouldn't be problem to add these two.

Thank you and greetings from Antarctica!

Paride