dogwatch

(dôg′wäc̸h′)

noun

Naut. either of the two duty periods (from 4 to 6 P.M. and from 6 to 8 P.M.) that are half the length of a normal period

See dogwatch in American Heritage Dictionary 4

noun

Nautical Either of two short periods of watch duty, from 4 to 6 P.M. or 6 to 8 P.M.
A late night shift.

Origin:

Origin: Probably from dog-sleep, a light or interrupted sleep

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