Some rules add extra days when the triggering document was served by mail rather than electronically or in person. Enter the number your rule specifies, or leave at 0.
Most modern procedural rules — including Federal Rule of Civil Procedure 6(a) in the United States, and equivalents adopted by most U.S. state courts — count every day in the period as a calendar day, including weekends and holidays. The count begins the day after the triggering event: service of a document, entry of an order, or filing of a motion.
The one exception is the last day of the period. If it falls on a Saturday, Sunday, or a legal holiday, the deadline automatically rolls forward to the next day the court is open. This is the "calendar days" mode in the calculator above.
Some rules instead specify court days or business days throughout the entire count — not just at the end. Under this method, weekends and holidays are skipped every step of the way, so a "10-day" deadline can span nearly three calendar weeks. Short deadlines (under about 11 days) in some older or state-specific rules use this method; check the exact rule text, since the difference compounds quickly on longer periods.
Neither convention is universal. Administrative agencies, arbitration panels, and specific courts' local rules or individual judges' standing orders can define their own counting method entirely. When in doubt, read the rule that actually creates your deadline, not a general convention.
| Deadline type | Typical length |
|---|---|
| Answer to a complaint (federal) | 21 days after service |
| Answer to a complaint (state courts) | Commonly 20–30 days — varies by state |
| Notice of appeal (federal civil) | 30 days after judgment (60 if government is a party) |
| Written discovery responses (federal) | 30 days after service |
| Motion response deadline | Commonly 14–21 days — set by local rule |
| Statute of limitations | Varies enormously by claim type and state/country — no general rule |
These figures illustrate common patterns only and are not a substitute for the actual rule, statute, or court order governing your case. Deadlines above may have changed, may not apply in your jurisdiction, and may be shortened or extended by a court. Verify before relying on any of them.
Historically, many procedural rules — including the U.S. federal rules — added extra days to a deadline when the document that triggered it was served by mail rather than delivered electronically or in person, to account for delivery time. As electronic filing and service have become standard, several jurisdictions have narrowed or removed this extension, but plenty of local rules, older statutes, and non-U.S. procedures still include it.
Because the number of extra days (commonly 3, but not always) and whether it applies at all depends entirely on your specific rule and method of service, this calculator lets you enter the figure manually rather than assuming one. Confirm the correct number in the rule that governs your deadline before using it.
Frequently Asked Questions
Is this legal advice?
No. This calculator performs date arithmetic based on general day-counting conventions used in many courts. It is not legal advice, does not know your jurisdiction's specific rules, and cannot account for local rules, standing orders, or case-specific extensions. Always verify any deadline against the applicable court rules, your local rules of civil procedure, and the docket in your case, or consult a licensed attorney.
How are court deadlines counted?
Most modern rules, including Federal Rule of Civil Procedure 6(a), count every day of the period — including weekends and holidays — as a calendar day. The count starts the day after the triggering event. If the last day of the period falls on a Saturday, Sunday, or legal holiday, the deadline rolls forward to the next day that is not one of those. Some older rules or specific local rules instead count only "court days" or "judicial days," skipping weekends and holidays throughout the count, not just at the end.
What happens if a deadline falls on a weekend or holiday?
Under the calendar-day convention used by FRCP 6(a) and adopted by most U.S. state courts, if the calculated deadline lands on a Saturday, Sunday, or a legal holiday, it automatically moves to the next day the court is open. This calculator applies that roll-forward rule when you select calendar-day counting.
Do all courts use the same day-counting rule?
No. While the FRCP 6(a) calendar-day approach is widely adopted, individual states, specific courts, and even individual judges' standing orders can define deadlines differently — some still use business-day or court-day counting for short deadlines, and administrative or arbitration bodies often set their own rules entirely. Always confirm the counting method in the rule or order that created your specific deadline.
What are the extra days for service by mail?
Many procedural rules add extra days to a deadline when a triggering document was served by mail rather than electronically or in person, to account for delivery time — historically 3 days under the U.S. federal rules for certain types of service, though this has been narrowed as electronic filing became standard. Whether extra days apply, and how many, depends entirely on your jurisdiction's current rules and the method of service actually used. Enter the extra days manually if your rule specifies them; leave it at zero otherwise.