This is all relative. Go in step with the schedule of the city your in. Are the hot girls hitting the club at 1am? That's your prime time. If its happy hour at 5pm, then follow that. The guys I've seen partying until 9am usually are by themselves, with girls with horrific drug problems, or calling hookers of craigslist. If your not really fucked up, its not pretty.
Get your girl early and get her out of there. Take her away from her group or your group as soon as possible, and make sure you don't meet up with them again. If you can't do that, it doesn't matter what time was bar time.
Get your girl early and get her out of there. Take her away from her group or your group as soon as possible, and make sure you don't meet up with them again. If you can't do that, it doesn't matter what time was bar time.