oh dark thirty

(redirected from oh-dark-thirty)

oh dark thirty

A non-specific time in the early morning before the sun has risen. Based on the way in which military time is said aloud. ("Oh" is a common way of saying the number 0.) Why on earth are we meeting at oh dark thirty? The only thing we should be doing at this hour is sleeping! We'll have to leave at oh dark thirty if we want to reach Las Cruces before sundown.
See also: dark, oh, thirty
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in periodicals archive ?
Chuck isn't much of a morning person, but he always gets up and out at "oh-dark-thirty" when necessary.
My weakness as a hunter is definitely my attention span, that and cynicism, but this guy had also showed up alone at oh-dark-thirty and worked hard to try to make something happen.
On the early morning (oh-dark-thirty) ride to the airport, I could make out glimpses of the moon through a occasional break in the fog.
"No problem on the pistol, and I'll see you, boots, blue jeans, and hat equipped, around oh-dark-thirty Saturday morning."
I STOOD BY MY JET AT OH-dark-thirty, January 17, 1991, and watched the first package of F-4G Wild Weasels takeoff.
It's nearly oh-dark-thirty (that's military talk for the time in the morning long before the rooster crows) on Saturday, November 7.