What does dogwatch mean?
A dogwatch is a short duty period aboard a ship — specifically one of two half-hour watches that together span the hours between four and six in the evening. In the traditional system of dividing the day into watches, the dogwatch exists for practical rather than superstitious reasons: by splitting what would otherwise be a single four-hour watch into two brief ones, the rotation of duties shifts forward each day, ensuring the same sailors are not always assigned to the same inconvenient night hours. The name likely derives from the sense of 'dogged' meaning curtailed or shortened, echoing phrases such as 'dog Latin' for imperfect Latin. Today the word survives mainly in naval and sailing circles, and it is sometimes applied loosely to any brief late-afternoon shift ashore. It remains a distinctive piece of maritime vocabulary, valued both for its history and for the glimpse it offers into the rhythms of life at sea.
nounA nautical term for either of two half-hour watches aboard ship between 16:00 and 18:00, so called because they are 'curtailed' or 'dogged' versions of a full four-hour watch. The dogwatch allows the crew's watch rotation to shift by one full cycle each day.
- Either of the two half-hour watches kept aboard a ship between 16:00 and 18:00 (4 p.m. and 6 p.m.).
"The cook had barely finished supper when he was called up to stand the second dogwatch."
"During the first dogwatch, the sailors took their evening meal and swapped stories on deck."
"Being assigned the second dogwatch meant he finally got to see the sunset from the bridge."
Standard plural, typically referring collectively to both of the day's short watches or to such watches across multiple days.
"The dogwatches were his favorite part of the day, when the light softened over the water."
Sailors named this short evening watch after a dog because it was 'curtailed' — and thanks to its split design, no sailor ever stands the same watch at the same hours two nights running.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dogwatch
The word combines 'dog', used here in an older adjectival sense meaning curtailed, inferior, or counterfeit (as in 'dog Latin'), with 'watch', the standard nautical division of the day into duty periods. First attested in English maritime usage around the early nineteenth century, it arose because the usual four-hour afternoon watch was halved into two short watches. This deliberate splitting shifts every sailor's subsequent watch assignment forward by one slot daily, rotating the burden of night duties fairly through the crew.
How dogwatch is actually used
Chiefly used in nautical and maritime contexts, though occasionally borrowed figuratively for any short late-afternoon work shift. Often encountered in the fixed phrases 'first dogwatch' and 'second dogwatch'.
Easily confused with dogwatch
A dogleg is a sharp bend or angle, as in a road or golf hole, whereas a dogwatch is one of two short evening watches on board ship.