Where the deadline data on this site comes from, how often it gets rechecked, and what happens when someone flags a mistake.
Every period shown on this site traces back to a primary source: a federal or state statute, a published court rule, or an official rules committee order. For the federal calculators that means FRCP Rule 6 and the related FRAP provisions. For the Florida calculator it means the Florida Statutes and the Florida Rules of Civil Procedure and General Practice and Judicial Administration. For the statute of limitations reference it means each state's own limitations statute, cited by section number wherever one exists. Secondary summaries, including other websites' summaries, are never used as the source of a number; they get checked against the rule or statute itself first.
State legislatures amend limitations periods and procedural rules on their own schedule, not this site's. Pages that cite a specific statute or rule get rechecked at least once a year, and sooner when a change is known, the way Florida's HB 837 (2023) triggered an update to the personal injury period as soon as it took effect. Each article carries a visible "Updated" date in the byline near the top so you can see when it was last checked, not just when it was first written.
If a citation is out of date, a state's period has changed, or a calculator returns a date that does not match the rule it claims to follow, use the contact form and include the state or jurisdiction, the rule or statute involved, and what you expected versus what the page showed. Reports get checked against the current text of the statute or rule before anything changes, and the page's "Updated" date moves forward once a fix goes live.
Nothing on this site is legal advice, and using a calculator or reading an article does not create an attorney-client relationship with anyone. The tools here are a starting point for figuring out roughly where a deadline falls; the rule that actually governs your filing, and a licensed attorney in the right jurisdiction, are the final word.