Greenwich Mean Time
1884 Washington DC USA
1884, Washington DC (USA), on signature of an agreement by representatives of 26 countries at International Meridian Conference. Based on original calculations by Nevil Maskelyne, first published 1767. Based in the Royal Observatory Greenwich (UK) and managed as part of the National Maritime Museum.
Provide a basis for computation of precise longitude and time zones worldwide; operate a public astronomy service and public museum and archive; provide educational programmes.
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UIA Org ID
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