What time do they stop selling beer in california?

Sale is allowed 6 A.M. to 2 A.M. Wine, beer and spirits are allowed to be sold in grocery stores. California has quite lenient laws about liquor promotion but counties can restrict sales with local laws. Sale of alcohol 76.5% ABV or higher is illegal. read more

In other words, it is unlawful to sell alcoholic beverages either by the drink or by the package, between the hours of 2 a.m. and 6 a.m. of the same day. It is also unlawful for any person to knowingly purchase any alcoholic beverages between the hours of 2:00 a.m. and 6:00 a.m. read more