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- Anglo-French_Conference_on_Time-keeping_at_Sea abstract "The Anglo-French Conference on Time-keeping at Sea was held in London in June 1917. The Conference established the nautical date line and adopted an ideal form of the terrestrial time zone system for use at sea. It recommended that time changes required by changes of longitude be made in one-hour steps. This recommendation was adopted between 1920 and 1925 by all major fleets, including British, French and American. The rules applied to almost all naval ships and to many non-naval ships. Nevertheless, up to the Second World War, the old practice of keeping local apparent time prevailed on many independent merchant ships. The nautical date line is implied but not explicitly drawn on time zone maps. It follows the 180° meridian except where it is interrupted by territorial waters adjacent to land, forming gaps: it is a pole-to-pole dashed line. Ships are required to adopt the standard time of a country when they are within its territorial waters, but must revert to international time zones (15° wide pole-to-pole gores) as soon as they leave territorial waters. The 15° gore that is offset from GMT or UT1 (not UTC) by twelve hours is bisected by the nautical date line into two 7.5° gores that differ from GMT by ±12 hours.In reality nautical time zones are used only for radio communication etc. Internally on the ship, e.g. for work and meal hours, the ship may use a suitable time of its own choosing.".
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageID "14098716".
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageLength "1605".
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageOutDegree "15".
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageRevisionID "498474303".
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink 180th_meridian.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Category:Lines_of_longitude.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Coordinated_Universal_Time.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink France.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink GMT.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Greenwich_Mean_Time.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink London.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Longitude.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Nautical_date_line.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Nautical_time.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Second_World_War.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Standard_time.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Territorial_waters.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Time_zone.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink UT1.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink UTC.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink United_Kingdom.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink United_States.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink Universal_Time.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLink World_War_II.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageWikiLinkText "Anglo-French Conference on Time-keeping at Sea".
- Anglo-French_Conference_on_Time-keeping_at_Sea hasPhotoCollection Anglo-French_Conference_on_Time-keeping_at_Sea.
- Anglo-French_Conference_on_Time-keeping_at_Sea wikiPageUsesTemplate Template:Coord.
- Anglo-French_Conference_on_Time-keeping_at_Sea subject Category:Lines_of_longitude.
- Anglo-French_Conference_on_Time-keeping_at_Sea point "0.0 -180.0".
- Anglo-French_Conference_on_Time-keeping_at_Sea type SpatialThing.
- Anglo-French_Conference_on_Time-keeping_at_Sea comment "The Anglo-French Conference on Time-keeping at Sea was held in London in June 1917. The Conference established the nautical date line and adopted an ideal form of the terrestrial time zone system for use at sea. It recommended that time changes required by changes of longitude be made in one-hour steps. This recommendation was adopted between 1920 and 1925 by all major fleets, including British, French and American. The rules applied to almost all naval ships and to many non-naval ships.".
- Anglo-French_Conference_on_Time-keeping_at_Sea label "Anglo-French Conference on Time-keeping at Sea".
- Anglo-French_Conference_on_Time-keeping_at_Sea sameAs m.03ctl6g.
- Anglo-French_Conference_on_Time-keeping_at_Sea sameAs Q4763624.
- Anglo-French_Conference_on_Time-keeping_at_Sea sameAs Q4763624.
- Anglo-French_Conference_on_Time-keeping_at_Sea lat "0.0".
- Anglo-French_Conference_on_Time-keeping_at_Sea long "-180.0".
- Anglo-French_Conference_on_Time-keeping_at_Sea wasDerivedFrom Anglo-French_Conference_on_Time-keeping_at_Sea?oldid=498474303.
- Anglo-French_Conference_on_Time-keeping_at_Sea isPrimaryTopicOf Anglo-French_Conference_on_Time-keeping_at_Sea.