oh dark thirty
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See also: oh-dark-thirty
English[edit]
Alternative forms[edit]
Etymology[edit]
From U.S. military terminology, in which hours before 10:00 am are prefixed with a zero, read as "oh", as in 0530, oh five-thirty, for 5:30 am.
Pronunciation[edit]
Audio (AU) (file)
Noun[edit]
- Some unspecified hour in the early morning (implies an unpleasant time to be awake).
- I had to get up at oh dark thirty to catch a plane.