Center Bar -- Center your attention at the Center Bar . Located in the swanky depth of Hard Rock Cafe and Casino, Center Bar is a place to party with the most exciting happy hour in Las Vegas 4PM to 8PM every day of the week. Enjoy two-for-one call drinks, two-dollar domestic beers and giveaways. Center of Attention Thursdays focus on catering to the female population of Las Vegas . Every Thursday the Center Bar awards three hundred dollars to "the hottest girl in the bar".