California Codes, Civil Code - CIV, Preliminary Provisions, Section 7
Holidays within the meaning of this code are every Sunday and such other days as are specified or provided for as holidays in the Government Code of the State of California.
Notes
Defines holidays for purposes of this code as every Sunday together with any other days specified or provided for as holidays in the California Government Code. Fixes no separate list, instead pointing to the Government Code for the days that count.
Use as reference
Lexinter.net | California Code, Civil Code - CIV § 7 | https://laws.lexinter.net/codes/california/civil-code/preliminary-provisions/section-7