⚖︎ CourtClock

Federal litigation deadline calculator — FRCP Rule 6(a) & 6(d), with a written audit trail. Works fully offline.

Compute a deadline

Deadline:

How it computes (FRCP Rule 6(a))

1. Exclude the trigger day; count every calendar day including intermediate Saturdays, Sundays, and legal holidays — Rule 6(a)(1). 2. If the last day is a Saturday, Sunday, or federal legal holiday (5 U.S.C. § 6103, including observed dates), the period runs to the next accessible business day — Rule 6(a)(1)(C). Backward-counted deadlines roll to the previous business day — Rule 6(a)(5). 3. Rule 6(d) adds 3 days when service is by mail or other non-electronic means, applied before the weekend/holiday rollover. Federal holidays are computed for any year (fixed-date and floating rules, with Sat→Fri / Sun→Mon observance).

CourtClock is a computational aid, not legal advice. Always verify deadlines against the current rules, local rules, standing orders, and court-specific ECF procedures. © 2026 CourtClock.

CourtClock Pro — run your whole docket, offline

The calculator above is free, forever, and runs entirely in your browser. Pro is for firms that need it at volume and on the record.

Free (this page)

$0
  • All 12 FRCP / FRAP deadline presets
  • Rule 6(a) weekend & federal-holiday rollover
  • Rule 6(d) +3-day service rule
  • Cited, printable audit trail
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Pro — single-file offline build

$29 one-time, per firm
  • Everything free, plus:
  • Batch mode — paste a list of trigger dates, get every deadline in one table
  • CSV / calendar (.ics) export for Outlook & Clio
  • Local-rule offsets you define once and reuse
  • Runs from a single HTML file on an air-gapped machine — nothing leaves your network
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Secure checkout by Stripe. No account, no subscription, no auto-renewal — one payment, yours to keep. Your download link is emailed to the address on your Stripe receipt within one business day; if it hasn’t arrived by then, forward the receipt to [email protected] and you’ll get the build or a full refund, your choice.

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What you actually get: one HTML file, about 20 KB. Open it from your desktop, a network share, or a USB stick — it needs no installer, no internet connection and no admin rights, so it runs on locked-down firm machines and air-gapped review workstations. No client data, matter names or dates ever leave the browser. Site licence for one firm; put it wherever your people need it.

Plain-English guides to the rules behind these dates

See all guides →

Not legal advice. CourtClock computes dates from the Federal Rules of Civil Procedure, the Federal Rules of Appellate Procedure, and the federal holiday schedule at 5 U.S.C. § 6103. Local rules, standing orders, and judge-specific scheduling orders can and do change these deadlines. Always confirm against the governing order before you rely on a date.

Contact: [email protected]