oh dark thirty
oh dark thirty noun: some unspecified hour in the early morning (implying an unpleasant time to be awake).
Noun
oh dark thirty
- Some unspecified hour in the early morning (implying an unpleasant time to be awake).
- I had to get up at oh dark thirty to catch a plane.
- Synonyms:
- crack of dawn, dark o’clock, stupid o'clock, wee small hours
Synonyms of oh dark thirty
Forms of oh dark thirty
| alternative form | 0-dark-thirty |
|---|---|
| alternative form | oh-dark-thirty |
| alternative form | zero dark thirty |
| alternative form | dark thirty |
Origin of oh dark thirty
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.
Questions about oh dark thirty
- What does oh dark thirty mean?
- Oh dark thirty means some unspecified hour in the early morning (implying an unpleasant time to be awake).
- What part of speech is oh dark thirty?
- Oh dark thirty is a noun.
Words near oh dark thirty in the dictionary
Source and license
Adapted from Wiktionary: oh dark thirty (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: En-au-oh dark thirty.ogg.
Cite this entry: “oh dark thirty.” Word.ws, https://word.ws/oh_dark_thirty. Based on Wiktionary, CC BY-SA 4.0.