Top Definition
The official time given for when a band will perform, even though everyone knows they will actually go on at least 45 minutes late.
Person One: What the hell? Weren't Black Lips supposed to go on at 10:00? That was nearly an hour ago!!??!

Person Two: Psh, dude, chillout. They were supposed to go on at 10:00 Indie Rock Standard Time (IRST). Look, they're about to go on now. Right on time.
by Gold Soundz June 02, 2011

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