In general, California's statute of limitations to bring a defamation lawsuit is one year after the untrue statement was first published or spoken. The clock does not restart every time the same statement is subsequently published (such as through a retweet).
In short, the offended party must prove a defamatory statement was made within one year of when the statement was made, why it is false, and if the statement is defamatory and the plaintiff seeks damages based on the per se or pro quod standards.
In some states, general damages are allowed in libel (written) but not slander (verbal) defamation cases. In other states, victims of slander can recover general damages, but only when the false statement is obviously harmful (called "slander per se") and caused the plaintiff financial harm.
In short, the offended party must prove a defamatory statement was made within one year of when the statement was made, why it is false, and if the statement is defamatory and the plaintiff seeks damages based on the per se or pro quod standards.
No Criminal Penalties Defamation is not a criminal offense in California. It is a crime in 23 other states and the U.S. Islands.
One Year Statute of Limitations Watching the clock is particularly important in defamation cases. That's because defamation cases are the only civil actions in Michigan with a one-year statute of limitations.
“The elements of a defamation claim are: (1) a false and defamatory statement concerning the plaintiff, (2) an unprivileged communication to a third party, (3) fault amounting at least to negligence on the part of the publisher, and (4) either actionability of the statement irrespective of special harm (defamation per ...
(a) Except as provided in subdivisions (b) through (e), if the report is a false report of a misdemeanor, the person is guilty of a misdemeanor punishable by imprisonment for not more than 93 days or a fine of not more than $500.00, or both.
“The elements of a defamation claim are: (1) a false and defamatory statement concerning the plaintiff, (2) an unprivileged communication to a third party, (3) fault amounting at least to negligence on the part of the publisher, and (4) either actionability of the statement irrespective of special harm (defamation per ...
—Any person who shall falsely and maliciously, by word, writing, sign, or otherwise accuse, attribute, or impute to another the commission of any crime, felony or misdemeanor, or any infamous or degrading act, or impute or attribute to any female a want of chastity, shall be guilty of a misdemeanor.