[tz] Question about historical TZData for North Carolina

Zoidsoft zoidsoft at gmail.com
Mon Dec 7 04:36:23 UTC 2015

I'd like to add that I think it's a good idea to do what Alois Triendl has
proposed, but I think such data should be kept separate from the main post
1970 tz-data.

On Sun, Dec 6, 2015 at 9:39 PM, Zoidsoft <zoidsoft at gmail.com> wrote:

> Paul's right.  I've come to the conclusion that it is better to view any
> data pre-1970 as a suggestion provided to the end user with warnings.
> Expanding the data to include more questionable data just leads to a false
> sense of security.
> On Sun, Dec 6, 2015 at 4:49 PM, Paul Eggert <eggert at cs.ucla.edu> wrote:
>> Clifford Ribaudo wrote:
>>> I would like to propose that Zone Names be added for each state and
>>> which at a minimum simply model the adoption of DST in 1966.
>> As you know, the U.S. was a huge zoo of local time zone jurisdictions
>> before 1970, and the same is true elsewhere in the world. The tzdata
>> project considers most of this data to be out of scope, as we simply don't
>> have the resources to maintain the large, unreliable database that would be
>> needed to cover the world before 1970.
>> That being said, there is a spot for out-of-scope data if you can find
>> good sources for it. It's the file 'backzone', and it contains entries such
>> as Europe/Guernsey that can be helpful for apps like yours, along with some
>> other entries that are dicier. If you can come up with well-sourced data
>> for North Carolina and propose a patch for 'backzone', we could slide it in
>> there.  For info about doing that, please see:
>> https://github.com/eggert/tz/blob/master/CONTRIBUTING
>> https://github.com/eggert/tz/blob/master/Theory
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