Nautical Time

By Henry Harries , published November 1928

Abstract

The differences between the civil day (midnight to midnight), astronomical day (from noon to noon with yesterday’s date), and nautical day (noon to noon with tomorrow’s date) are discussed and the general adoption of the nautical day into maritime practice investigated. Based on an examination of ships logs and other contemporary records this occurred gradually from the late 17th to early 19th century. A number of examples are quoted, the first indication being in 1672. Standardised formats for ships logs were introduced with completion of details at noon for the previous 24 hours but these were never universally adopted.

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Filed under: Other (Nineteenth C) | Other (Eighteenth C) | Other (location)
Subjects include: Administration | Manpower & Life at Sea

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