California Code, Code of Civil Procedure - CCP § 583.320

(1) If a trial is commenced but no judgment is entered because of a mistrial or because a jury is unable to reach a decision, within three years after the order of the court declaring the mistrial or the disagreement of the jury is entered.

(2) If after judgment a new trial is granted and no appeal is taken, within three years after the order granting the new trial is entered.

(3) If on appeal an order granting a new trial is affirmed or a judgment is reversed and the action remanded for a new trial, within three years after the remittitur is filed by the clerk of the trial court.