oh dark hundred

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oh dark hundred

Where it comes from

From military time, in which hours before 10:00 am are prefixed with a zero, read as "oh", and 00 minutes is read as "hundred", as in oh five-hundred for 5:00 am.

noun 0-dark-hundred

  1. idiomatic Some unspecified hour in the early morning (implies an unpleasant time to be awake) I had to get up at oh dark hundred to catch a plane.

    Similar: crack of dawn, stupid o'clock, wee small hours

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MLA

"oh dark hundred." Wiktionary, via Micwyn, micwyn.com/word/oh%20dark%20hundred. Accessed 6 Nov. 2026.

APA

oh dark hundred. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/oh%20dark%20hundred

Chicago

"oh dark hundred." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/oh%20dark%20hundred.

BibTeX
@misc{oh_dark_hundred_2026,
  title = {oh dark hundred},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/oh%20dark%20hundred},
  urldate = {2026-11-06}
}