[tz] Adding verified historic details

[Lester Caine]

Joseph S. Myers wrote:
> On Wed, 4 Sep 2013, Lester Caine wrote:
>
>>> We have dates of legal adoption of GMT in Jersey (around 4pm on Saturday
>>> 11 June 1898) and Guernsey (18 June 1913).
>> Can I take those dates as facts we can add to the tz data? Is there any
>> indication of the islands using a different time prior or like the main land
>> they were already using 'GMT' and this just formalised it?
>
> I don't have information about what time was being used before the legal
> adoption of GMT.  The petition (March 1909) signed by ten members of the
> States of Deliberation of Guernsey called for adoption of GMT as well as
> for summer time (only the first part ended up entered into law), and says
> "As to the first, that the island time should be standardised, we
> apprehend that there will be little, if any, difference of opinion.
> Indeed, we think it likely that many will hear with surprise that there is
> at present no official standard time in Guernsey, and that at any moment
> questions might arise which would be difficult to settle in the present
> state of confusion.".

With the Channel Islands being closer to the meridian the differences would 
probably just be interpreted as the poor setting of clocks? I've not found 
anything yet relating to a standard on the Isle of Man prior to GMT but I think 
it's worth going back through the records as they are very comprehensive.

-- 
Lester Caine - G8HFL
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