Definition

Noun

  • The navigator’s working day from his noon sights to the following day.

Origin

Probably earlier than the 18th century.

Comments

Since sun sights are traditionally taken at noon every day, the navigator uses that celestial information to note the ship’s position. Thus, the 24 hours from one set of noon sights to the next is a day’s work.

References

Rogers, J.G. (1985). Origins of Sea Terms. Mystic Seaport.