the first 59 minutes after a hentai video is uploaded. people who see the video before an hour passes since the upload are called zero hour gang but some people call them zero bitches gang.
hanime.tv user 1: wow i can't believe it, my first zero hour!
hanime.tv user 2 (he came 1 hour and 1 minute after): haha zero bitches gang.
by performative activist August 4, 2022
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When a countdown is scheduled to end. Alternatively, a deadline.
From Elton John's "Rocket Man"

She packed my bags last night pre-flight
Zero Hour, 9 A.M.
And I'm gonna be high...
As a kite by then.

by Webster October 6, 2003
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Expansion pack to Command and Conquer: Generals. Very good game, but some people obsess over it and are really gay.
"Syful you suck at ZH! You didn't even build a secondary econemy! Faggot!"
"So? I don't care, its just a stupid game."
"STUPID GAME! THAT GAME IS MY LIFE!!! ROAR!"
by Micheal Jackson November 5, 2003
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31/12/99 was supposed to be the Zero Hour but the Christian FundaMENTALists who prophesiced this are all losers.
by Brother Number One October 3, 2003
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When you are listening to the radio and there isnt good music, and when you only have the choice to listen to Kelly Clarkson!!!
Fuck! its the zero hour. This trip is gonna be long one.
by Enrique April 4, 2005
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Addendum: Zero Hour referring to Midnite or the early AM.
I gotta get this done during the Zero Hour
by Jay K. September 24, 2003
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