[tz] time zone history for the Cook Islands - Christmas Day Act 1899
Michael H Deckers
michael.h.deckers at googlemail.com
Thu Mar 25 12:24:49 UTC 2021
On 2021-03-24 20:13, Alan Mintz wrote:
> It may be more complicated than that. The years around 1900 looks like a
> busy time in the history of the Cook Islands – 15 islands spread over 2.2
> million sq km (850,000 sq mi) of ocean, 8.5 degrees of longitude and 13
> degrees of latitude – which may not have all been in sync. More than one
> time zone might be necessary to correctly reflect the ground truth, though
> I recognize it's out of the primary scope of tzdb. If a South Pacific
> history buff was interested in a project ...:)
Well, the text at
[http://nzetc.victoria.ac.nz/tm/scholarly/tei-KloDisc-t1-body-d18.html]
seems to be a good introduction to the early history, when the London
Missionary Society worked against the French influence for the
acceptance
as a British protectorate. They probably have used time of day as
measured with sundials, local apparent or mean solar time with an
uncertainty of a few minutes.
More precise time, as needed for the operation of a commercial port
or airport, requires either local astronomical transit observations
of stars or else time signals obtained via telegraphy or radio; in
the latter case, a time zone offset must be chosen, and one has
been fixed in the 1952 legislation. And there certainly has been a
transition period until all the inhabited islands had electricity.
Michael Deckers.
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