In Las Vegas, there is no time when the partying stops. Unlike in most of the United States, bars are allowed to stay open 24 hours a day,7 days a week.  There are also stores all over Vegas where you can purchase packaged alcohol around the clock. So if you kick off your party with a mimosa for breakfast and a couple of beers for lunch, and “one last” drink at 5:00 AM, are taking maximum advantage of your drinking time.  We don’t recommend this, but you do you!