Almost midnight, half-a-song

JOHN: Dan, we have 10 minutes left before midnight and only half-a-song. DAN: Well, instead of song-a-day, can't it be, like, song-every-24 hrs?
JOHN: Ooo... I like that. Yeah. DAN: Well, OK, we started writing at 8:30. Then we watched "Monster Garage".
JOHN: Yeah, that clearly shouldn't count as part of the 24 hours. DAN: Right, so 9:30. Though then I watched half of "Fools Rush In".
JOHN: I thought you were peeing. DAN: Then "Iron Chef", "Good Eats"... whoa. We wrote this half-a-song in, like, 15 minutes!