Definition

A scheduled period of duty, particularly aboard ships or in security operations. Borrowed from nautical tradition, it's why military personnel measure their lives in four-hour increments of consciousness.

Example Usage

I've got the mid-watch tonight—0200 to 0600, the hours where the soul dies.

Origin

Naval terminology dating back centuries to merchant and military sailing vessels

Fun Fact

The traditional watch system was designed when humans could function on fragmented sleep—modern research suggests this was optimistic at best.

Source: Naval and security operations terminology

Related Terms