California CodesCode of Civil Procedure - CCPPreliminary ProvisionsSection 9
When a limitation or period of time prescribed in any existing statute for acquiring a right or barring a remedy, or for any other purpose, has begun to run before this code goes into effect, and the same or any limitation is prescribed in this code, the time that has already run shall be deemed part of the time prescribed as such limitation by this code.
Notes
Requires time already elapsed under an existing statutory limitation or period before the Code takes effect to count toward any same or other limitation prescribed by the Code for acquiring a right, barring a remedy, or another purpose. The rule applies when the preexisting period had already begun to run before the Code’s effective date.
Use as reference
Lexinter.net | California Code, Code of Civil Procedure - CCP § 9 | https://laws.lexinter.net/codes/california/code-of-civil-procedure/preliminary-provisions/section-9