If any city, county, state, or public office, other than a branch office, is closed for the whole of any day, insofar as the business of that office is concerned, that day shall be considered as a holiday for the purposes of computing time under Sections 12 and 12a.
§ 12b.Public office closed for whole of day to be considered as holiday
Preliminary Provisions · Enacted 1951 · no amendments on record · Last verified July 28, 2026
In one sentenceSection 12b counts a full-day closure of a public office as a holiday for computing deadlines under Sections 12 and 12a.
Full Text of § 12b
Plain-English Summary
Section 12b fills a gap Section 12a’s definition of “holiday” would otherwise leave open.
If a city, county, state, or public office — other than a branch office — closes for an entire day, that day counts as a holiday when computing time under Sections 12 and 12a, even if it isn’t a Sunday, a Saturday, or a Section 135 judicial holiday.
Frequently Asked Questions
Does a public office closure count as a holiday for deadline purposes?
Yes, if the office is closed for the whole day. Section 12b treats that day as a holiday when computing time under Sections 12 and 12a.
Does a partial-day office closure count under Section 12b?
No — the section applies only when the office is closed for the whole of the day.
Amendment History
Added Stats 1951 ch 655 § 25.
Source & verification. Section text is reproduced verbatim from
the Deering's California Codes Annotated / vLex. Enacted by the California Legislature.
Last verified July 28, 2026.
· Official source
Also known as: office closed for the day deadline CaliforniaCCP section 12b