Any on- or off-sale licensee, or agent or employee of that licensee, who sells, gives, or delivers to any persons any alcoholic beverage or any person who knowingly purchases any alcoholic beverage between the hours of 2 o'clock a.m. and 6 o'clock a.m. of the same day, is guilty of a misdemeanor.
For the purposes of this section, on the day that a time change occurs from Pacific standard time to Pacific daylight saving time, or back again to Pacific standard time, "2 o'clock a.m." means two hours after midnight of the day preceding the day such change occurs.
Ca. Bus. and Prof'l. Code § 25631