California Codes, Code of Civil Procedure - CCP, Part 2 — Of Civil Actions, Title 9 — Enforcement of Judgments, Division 1 — Definitions and General Provisions, Chapter 5 — Interest and Costs, Section 685.020
(a) Except as provided in subdivision (b), interest commences to accrue on a money judgment on the date of entry of the judgment.
(b) Unless the judgment otherwise provides, if a money judgment is payable in installments, interest commences to accrue as to each installment on the date the installment becomes due.
Notes
Sets interest on a money judgment to begin accruing on the date judgment is entered. If the judgment is payable in installments, interest instead begins on each installment when that installment becomes due unless the judgment itself provides a different rule.
Use as reference
Lexinter.net | California Code, Code of Civil Procedure - CCP § 685.020 | https://laws.lexinter.net/codes/california/code-of-civil-procedure/part-2/title-9/division-1/chapter-5/section-685-020