The primary division would be current iso countries.

And there is no need to go back as far as you suggest. LMT, as I'm sure you are aware, originated as standard in many cities in the 1800 due to clock technology. Before that most people used local solar (sundial) time.



Sent from my Galaxy


-------- Original message --------
From: Steve Allen via tz <tz@iana.org>
Date: 2021-09-21 18:40 (GMT-05:00)
To: Time Zone Database discussion <tz@iana.org>
Subject: Re: [tz] Replacing the TZ Coordinator

On Tue 2021-09-21T22:42:47+0100 Stephen Colebourne via tz hath writ:
> Is there consensus on the list that a change is required?

No.

Before a change of coordinator happens I want to see proponents of
"one zone per ISO country code" and proponents of the "data before
1970 must be available" agree on how tzdata and tzcode should handle
this:

https://www.euratlas.net/history/europe/1600/

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