International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884.: Protocols of the ProceedingsInternational Meridian Conference (1884 : Washington, D.C.)
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International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884.: Protocols of the Proceedings
International Meridian Conference (1884 : Washington, D.C.)
Prime Meridian -- Congresses; Time -- Systems and standards -- Congresses
8. _That the Cosmic Day be divided into hours, numbered in a
single series, one to twenty-four, (1 to 24,) and that the
hours be subdivided, as ordinary hours, into minutes and
seconds. Note.--As an alternative means of distinguishing
the cosmic hours from the hours in local reckonings, they
may be denoted by the letters of the alphabet, which,
omitting I and V, are twenty-four in number._
9. _That until Cosmic Time be admitted as the recognized
means of reckoning in the ordinary affairs of life, it is
advisable to assimilate the system to present usages and to
provide for the easy translation of local reckonings into
Cosmic Time, and vice versa; that, therefore, in theory, and
as closely as possible in practice, local reckonings be
based on a known interval in advance or behind Cosmic Time._
10. _That the surface of the globe be divided by twenty-four
equidistant hour meridians, corresponding with the hours of
the Cosmic Day._
11. _That, as far as practicable, the several hour meridians
be taken according to the longitude of the locality, to
regulate local reckonings, in a manner similar to the
system in use throughout North America._
12. _That, in all cases where an hour meridian is adopted as
the standard for regulating local reckonings, in a
particular section or district, the civil day shall be held
to commence twelve hours before and end twelve hours after
the mean solar passage of such hour meridian._
13. _That the civil day, based on the Prime Meridian of
Greenwich, shall coincide and be one with the Cosmic Day.
That civil days on meridians east of Greenwich shall be
(according to the longitude) a known number of hours, or
hours and minutes in advance of Cosmic Time, and to the west
of Greenwich the contrary._
14. _That the surface of the globe being divided by
twenty-four equidistant meridians (fifteen degrees apart)
corresponding with the hours of the Cosmic Day, it is
advisable that longitude be reckoned according to these hour
meridians._
15. _That divisions of longitude less than an hour (fifteen
degrees) be reckoned in minutes and seconds and parts of
seconds._
16. _That longitude be reckoned continuously towards the
west, beginning with zero at the Anti-prime meridian, twelve
hours from Greenwich._
17. _That longitude, generally, be denoted by the same terms
as those applied to Cosmic Time._
I submit these recommendations suggestively, and without any desire
unduly to press them. I shall be content if the leading principles
laid down be recognized by the Conference.
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