are you outside the bar entrance when you're there at the right time? Does the quest log say to do anything else first? Are you going to the right Bar, the one labeled BAR?
2 days ago(+1)
it could be that you're changing the time while over the event, so it's not firing when you exit the phone. Leave the map and return during the right time and see if that works. Lemme know if it doesn't as if not then there's something going on either with your download or there's a bug we haven't seen before here