Abstract
THE present method of counting longitudes east and west from a prime or zero meridian passing through the centre of the transit instrument at the Observatory of Greenwich, was decided upon at a conference held in Washington in October 1884 at which twenty-five countries were represented. The adoption, by international agreement, of a prime meridian passing through Greenwich, made possible the standard or zone system of reckoning time for civil purposes, which almost every country has adopted.
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The 24-Hour System of Time Reckoning. Nature 132, 835–836 (1933). https://doi.org/10.1038/132835a0
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DOI: https://doi.org/10.1038/132835a0