noun
General Slang
O-dark-thirty
· noun · military
Stupidly early. Some hour before sunrise that doesn't deserve a real name.
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Definitions
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Any ungodly hour between midnight and dawn when you're being made to do something. Deliberately vague — could be 0300, could be 0445. The point is it's dark, you're tired, and someone with stripes wants you upright.
“Convoy steps off at O-dark-thirty, so set two alarms.”
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O-dark-thirty In A Sentence
Convoy steps off at O-dark-thirty, so set two alarms.
Origin & Usage
Riffs on the 24-hour military time format (e.g. 0530 = 'zero five thirty'). The 'dark' bit acknowledges that whatever time it is, the sun isn't up yet.
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