What does "45" refer to in the following context:
Suspect: We got the big guns. Lieutenant and the lady detective.
Lady Detective: Well, deserve special treatment, bein' the voice of Philly Hip Hop on Radio 99.
Suspect: And I'm on in 45.
Another Detective: well, looks like you're gonna miss drive time, Big Soph.
I don't think it's her age.
Thanks a lot.
Probably depends on whether this conversation with the police takes place in a radio station or not. If at the station, seconds.