Pro Tier Module
Legal Deadlines & Practice Calculators
Compute court deadlines, statutes of limitations, and judgment interest by transparent, cited rules.
See it run - a worked example, 100% in this browser tab
The problem
Litigation deadlines turn on calendar-versus-court days, federal-holiday roll-forwards, and jurisdiction-specific limitation periods, where a single miscount can blow a filing or a claim.
The local-first solution
A deterministic, client-side calculator computes due dates, SOL deadlines, and judgment interest by exact integer and UTC-date arithmetic you can audit line by line, citing the controlling rule, with nothing uploaded.
What it does
Deadline calculator in calendar or court/business days, skipping weekends and federal holidays (5 U.S.C. 6103)
FRCP 6(a)-style roll-forward when the last day lands on a weekend or holiday
Statute-of-limitations deadline by jurisdiction, claim type, and accrual date
Federal SOL periods encoded from statute; a starter set of states as reference data
Pre/post-judgment interest, simple or compound with selectable frequency
Observed-day Saturday-to-Friday and Sunday-to-Monday holiday shift
Honest scope
A deadline, SOL, and interest calculator, not legal advice; local rules, standing orders, or a tolling event can change any computed date. The state SOL packs are reference tables that do not encode discovery-rule accrual, tolling, or carve-outs - confirm against the controlling authority. Federal periods cite the statute.
Authorities cited
- 5 U.S.C. 6103 - Federal holidays (and the standard Saturday->Friday / Sunday->Monday observed-day rule).
- Fed. R. Civ. P. 6(a) - Computing time; last-day-on-a-weekend-or-legal-holiday roll-forward; excluding intermediate weekends/holidays for short periods.
- 28 U.S.C. 1658(a) - Default 4-year limitations period for federal civil actions arising under post-1990 statutes.
- 28 U.S.C. 2415, 2401 - United States as a party: limitations on contract and tort actions.
- State periods are general references to each state code (e.g. Cal. Code Civ. Proc.; N.Y. C.P.L.R.; Tex. Civ. Prac. & Rem. Code 16.x; Fla. Stat. 95.11; 735 ILCS 5/13) and must be confirmed against the live code.
- 28 U.S.C. 1961(a) - Federal post-judgment interest at the weekly-average 1-year constant-maturity Treasury yield (Federal Reserve H.15), compounded annually. The optional rate-fetch uses Treasury FiscalData avg-interest-rates as the closest KEYLESS standin (not the 1-year CMT) and labels the series + as-of date used.
Compute the deadlines
Run the deadline and interest math in your browser and route the cited dates into a Sandbox set or a Worklog case. Nothing about the matter is uploaded to anyone's cloud.