A humorous way to declare an unknown time in the wee hours of the morning. Especially used by military personnel to describe an unwanted time to be awake or awaken. Usually pronounced "oh" dark thirty.
Originating from Zero Dark Hundred and the more well known Zero Dark Thirty; All being variations of military timings meaning midnight, or half past midnight.
Zero Dark Stupid is a generalization of these timings, meaning "at some ungodly hour in the morning".
Private Pylehad to get up at zero dark stupid and run laps around the camp, or else the DI would stomp his guts out for being a famf.
term arising from the military use of a 24 hour clock (0800 for 8 AM and 2000 for 8 PM- for those people who can't tell if its day or night) e.g. zero three hundred is 3 AM. zero dark hundred is usually inferred to as being sometime afterlast call and before reville...anytime between 2 and 5 AM. In other words, Waaay to fucking early to get up and go on watch, or on a 20 mile hike.
Example One:
Director: Tomorrow's schedule begins at 05:00 a.m., so be ready by 04:30 a.m.
Employee (under his breath): Oh crap! Another Zero-Dark-Buffalo-Hour timing!
Example Two:
Employee One: What time do we have to be ready?
Employee Two: Zero-Dark-Buffalo-Hour
Employee One: Shit! I wanted to sleep in!