Going completely silent from social networking, un-necessary relationships and distractions until the ultimate goal is attained.
I´m wasting too much time here. I´ve got to focus and go Zero Dark Thirty.
Very early. Early enough to seriously fuck up the day before, and the day of the event in question.
Yo...we had to get up at O dark -thirty to get to the meeting on time.
12:30am
The time of the raid will be zero dark thirty.
A time in the evening when it's very late, you are very trashed, and the end of your night is approaching. Usually a time of the evening when your condition allows you to make bad choices.
Guy 1: "I think that chick at the end of the bar wants to go home with me..."
Guy 2: "Man, she is really hit... It must be twelve dark thirty...