California CodesCivil Code - CIVPreliminary ProvisionsSection 10
The time in which any act provided by law is to be done is computed by excluding the first day and including the last, unless the last day is a holiday, and then it is also excluded.
Notes
Sets the method for counting any time period fixed by law: exclude the first day, include the last, and exclude the last day as well when it falls on a holiday. Applies to every act that law provides is to be done within a set time.
Use as reference
Lexinter.net | California Code, Civil Code - CIV § 10 | https://laws.lexinter.net/codes/california/civil-code/preliminary-provisions/section-10