A patron's ID lists a date of birth that makes them 21 today (their actual 21st birthday). May the server lawfully sell alcohol to them?
Explanation
Under §25658(a) and California law generally, a person attains the age of 21 on the day of their 21st birthday. From the start of that calendar day (12:00 a.m.), they may lawfully be served alcohol. There is no extra waiting period. The 6 a.m. – 2 a.m. service-hours rule (§25631) still applies to the establishment. Serving the night before the birthday (e.g., a midnight-strike celebration at 11:30 p.m. on the 20th) is still a §25658 violation.
Law Reference: Cal. Bus. & Prof. Code §25660This topic, taught in full in the California RBS (Responsible Beverage Service) guide. California RBS — Responsible Beverage Service Study Guide (2026) — PDF + EPUB, $9.99 · 14-day refund →
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