New York courts
What is the deadline for service of the summons and complaint after commencement?
The period for service of the summons and complaint after commencement normally runs 120 calendar days from commencement of the action or proceeding by filing, under CPLR 306-b. If the final day is a Saturday, Sunday or legal holiday in the New York calendar, the computation rule carries it to the next open day.
Calculate my deadline- Period
- 120 calendar days
- Trigger
- Commencement of the action or proceeding by filing
- Rule
- CPLR 306-b
New York rules as encoded, holiday calendar verified
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Calculate your deadline
Enter the date of commencement of the action or proceeding by filing. See the date, cited rule and counting steps.
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Which date starts the 120-day period?
The period runs from the commencement of the action or proceeding by filing.
Count forward from the trigger event. Confirm the event on the docket or in the service record before entering a date.
Read New York Courts rules and legislation"Service of the summons and complaint, summons with notice, third-party summons and complaint, or petition with a notice of petition or order to show cause shall be made within one hundred twenty days after the commencement of the action or proceeding..."
CPLR 306-b
This period runs from the specific event in the cited rule. Do not substitute a nearby date such as a hearing, a courtesy copy or the day you first learned of it.
Which date do I enter?How are the 120 calendar days counted?
- Exclude the day of the trigger event.
- Count every following day, including intermediate Saturdays, Sundays and legal holidays.
- If the last day is a Saturday, Sunday or New York legal holiday, continue to the next day that is not one of those.
Exclude the trigger day and count calendar days under General Construction Law 20 (days).
If the final day is a Saturday, Sunday or legal holiday in the New York calendar, the computation rule carries it to the next open day.
New York computes time under General Construction Law 20 (days). The applied calendar bundles the state legal holidays for the covered years; court-specific closures and emergency orders are not bundled.
Read General Construction Law 20 (days)The calculation gives the ordinary national-rule date. Check relevant holidays, the court’s accessibility and its filing cutoff separately.
Review the filing checklistWhat does a worked calculation look like?
Fictitious example
Assume the commencement of the action or proceeding by filing on Tuesday, September 1, 2026 (commencement of the action or proceeding by filing on this date, with no order, motion or extension affecting the period), with no order, motion, extension or local closure affecting the result. Exclude the trigger day and count calendar days under General Construction Law 20 (days). The example assumes no local rule, order or closure changes the default period.
| Step | What is counted | Date |
|---|---|---|
| Trigger | Do not count this day | September 1, 2026 |
| Day 1 | Start counting calendar days | September 2, 2026 |
| Day 120 | Ordinary deadline in this example | December 30, 2026 |
Can an order, motion or extension change the deadline?
- Extensions
- The court "upon motion, shall dismiss the action without prejudice as to that defendant, or upon good cause shown or in the interest of justice, extend the time for service". The interest-of-justice limb is broader than good cause and does not require reasonable diligence.
- Orders and local rules
- A scheduling order, stipulation approved by the court, standing order or local rule can set a different period and controls over the national default.
- The court "upon motion, shall dismiss the action without prejudice as to that defendant, or upon good cause shown or in the interest of justice, extend the time for service". The interest-of-justice limb is broader than good cause and does not require reasonable diligence.
- A stipulation, scheduling order, standing order or local rule can set a different period and controls over the national default.
What should I check before filing?
These checks help you review the result. They do not activate a calendar date or certify that the deadline applies.
Common questions
Find answers about when this 120-day period starts, how it is counted, what can change it and how to keep your calculation.
Starting the clock
Does the clock start on the commencement of the action or proceeding by filing, or when I first learned of it?
The period runs from the commencement of the action or proceeding by filing as the rule defines it, not from the day you read about it, received a courtesy copy or attended a hearing. Use the date shown on the docket or in the service record.
Counting days and filing
Is it 120 calendar days or business days?
Calendar days. Count intermediate weekends and holidays. If the final day is a Saturday, Sunday or legal holiday, General Construction Law 20 (days) carries it forward to the next day that is not one of those.
General Construction Law 20 (days)Which time zone and filing cutoff apply?
New York filing rules and the court’s electronic filing system set the cutoff. This calculator does not verify filing hours or system availability.
General Construction Law 20 (days)What if the court is inaccessible on the last day?
General Construction Law 20 (days) and the court’s administrative orders govern an inaccessible clerk’s office. Check the court’s notices. This calculator does not predict a closure.
General Construction Law 20 (days)Extensions and local rules
Can the court extend this deadline?
The court "upon motion, shall dismiss the action without prejudice as to that defendant, or upon good cause shown or in the interest of justice, extend the time for service". The interest-of-justice limb is broader than good cause and does not require reasonable diligence. A request does not itself extend the period, and no discretionary extension is calculated here.
Do local rules, standing orders or a scheduling order change the date?
They can. Many courts set their own periods by local rule, standing order or case-specific order, and those control over the national default. This calculator gives the national-rule date only; compare it with any order in the case before relying on it.
Choosing the right calculator
Does this calculator decide whether the rule applies to my case?
No. It calculates a period from the date you provide under the cited rule. It does not decide whether the rule governs your filing, whether an exception applies, or whether the filing has merit. Those questions need separate review.
Can I calculate the deadline without an account?
Yes. Enter the trigger date to see the free national-rule calculation, citation, counting steps and warnings. You can add court context after the result. Missing court review keeps the result provisional.
Results, records and your case
What is included in an Evidence Record?
The retained inputs, result, cited rule, calculation working, warnings and review state. The PDF includes a payload digest and retained-data appendix, and the record can be verified against its fingerprint later. It records the calculation, not a guarantee of legal correctness.
Does saving to a case activate the calendar?
Not automatically. Provisional records remain subject to review. A separately labeled manual date does not alter the original calculation.
Official sources and review
The period and the counting method come from different provisions. The official source is the court’s published rules; the reading links open the rule text at the Legal Information Institute.
| Provision | Purpose |
|---|---|
| CPLR 306-b | Trigger and period |
| General Construction Law 20 (days) | Counting, holidays and the last day |
Rule record reviewed . Guide sources checked . Next source check .
Published by Deadline Engine. This tool calculates the ordinary period under the cited rule. It does not decide whether the rule applies, obtain an extension or file anything for you.