Discovery / Court Filing Deadline
Discovery and motion filing deadlines.
Written and maintained by Paul Clark, Redmoon Software · Rules last verified · Sources · Changes & corrections
These calculators are for informational purposes only and do not constitute legal, financial, or professional advice.
How the Discovery / Court Filing Deadline works
The Discovery / Court Filing Deadline calculator computes when a civil response or filing is actually due by applying the time-computation rules courts use, not a raw calendar count. Enter the triggering date and the rule's day count, choose whether the period runs in court days or calendar days, and flag whether service was by mail — the tool counts forward, applies the holidays of the jurisdictions you select, and rolls any weekend or holiday landing forward to the next open day.
Four rules stack here. The day of the triggering event is excluded, so the count starts the next day. The period is then counted either as calendar days (the federal default since the 2009 amendments to Rule 6, which include intermediate weekends) or as court days that skip weekends and holidays as they go, depending on the convention your court uses. If the last day lands on a weekend or holiday, the period rolls forward to the next open day. Then, if service was by mail, by leaving the papers with the clerk, or by other means the party consented to, Rule 6(d) adds three calendar days after the period would otherwise expire — and if that third day is itself a weekend or holiday, it rolls forward again. Electronic service has not carried the extra three days in federal court since the 2016 amendments. Calendar days are the default here because that is how the Federal Rules count.
Because those rules interact, the same "30 days" can resolve to several different dates depending on the service method and the day-counting convention. Fix the triggering date first, match the toggles to the rule that actually governs your matter, and treat the result as a docket date you can defend rather than a back-of-envelope estimate.
Worked example
Requests for production are served by mail on Friday, 1 May 2026 with the usual 30-day period. Day zero is the Friday, so day 30 is Sunday, 31 May. Rule 6(a) rolls that to Monday, 1 June, and only then does Rule 6(d) add the three mail days, giving Thursday, 4 June 2026. Adding the three days to the raw Sunday instead would give Wednesday, 3 June — a day early. Turn the business-days toggle on, as a court-day jurisdiction would, and the same inputs give Thursday, 18 June, because the intervening weekends are skipped during the count too — same service date, same "30," materially different deadlines.
Frequently asked questions
Does the period count weekends and holidays?
Under the current federal rule it counts every day, including intermediate weekends and holidays, and only rolls forward if the last day lands on a weekend or holiday. Many state courts instead count in court days that skip weekends and holidays throughout. Use the business-days toggle to match whichever convention governs your matter.
When do I add the three mail-rule days?
When service was by mail, by leaving the papers with the clerk, or by other means the party consented to in writing (Rule 5(b)(2)(C), (D) and (F)). Personal service and electronic service do not get the extension in federal court — e-service lost it in the 2016 amendments. The three days are added after the period has run and been rolled off any weekend or holiday, which is what the calculator does. Some states use a different number or still extend e-service, so confirm your jurisdiction.
Which date is day zero, and is this legal advice?
The triggering event — the date of service or the date the order was entered — is excluded, so counting starts the next day. This is general information only, not legal advice; time-computation rules vary by court and deadline, so confirm any real deadline against the governing rules of court and a licensed attorney.
What this calculator does not do
A limitation you know about costs far less than one you find after the deadline. These are the specific things this tool cannot work out for you.
- A scheduling order under Rule 16 overrides the default periods. Where one exists, it governs.
- The 30 days run from service. Rule 6(d) adds three more only for service by mail, by leaving with the clerk or by other consented means (not electronic service), and they are added after the period has been rolled off any weekend or holiday.
Where these rules come from
The periods this calculator applies are taken from the primary sources below rather than from secondary summaries. Verify against them before relying on a date that matters.
- Fed. R. Civ. P. 33, 34 and 36
The 30-day response period for interrogatories, requests for production and requests for admission.
- Fed. R. Civ. P. 26(f)
Discovery generally may not begin before the parties’ conference.