[tz] uptodate data

Paul Eggert eggert at cs.ucla.edu
Wed Nov 13 21:48:04 UTC 2019

On 11/13/19 11:59 AM, Tim Parenti wrote:
> In particular, pre-1970 data in America/Chicago is only intended to be 
> correct for Chicago, IL, so timestamps for the example locations you 
> gave (Duluth, MN; Conway, AR; Port Arthur, TX) may of course differ 
> according to local custom at the time.

Yes. And of course America/Chicago is not the only entry with problems 
like these. For example, Europe/London is valid only for London (and 
even then, only for the parts of London that agreed with the L&NW, the 
Caledonian, and some other railways at the time).

If you want to cast horoscopes for Queen Victoria, George Washington, 
Julius Caesar, Tang of Shang, etc., you'll need to look elsewhere.

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