When must a defendant appear after service other than personal delivery in New York?

CPLR 320(a) gives thirty days after service is complete for its listed service routes. The legal completion event depends on the actual method. An appearance may involve an answer, notice of appearance or qualifying motion, and the summons-without-complaint route requires separate checks.

Responsible actor. The defendant required to appear in the New York action.

Identify the actual authorized summons-service provision. Do not label every nonpersonal delivery a thirty-day route without checking CPLR 320(a).

For CPLR 308(2) or (4), establish all required acts and proof filing. Those provisions state completion ten days after the required filing.

Check whether the complaint accompanied the summons and whether CPLR 3012(b) affects the appearance sequence.

Identify the actual appearance act and preserve publication history where CPLR 320(d) applies.

This guide requires the actual service provision and legal completion event. It publishes no automatic date or paid calculation. A delivery date alone cannot establish a completion-based appearance period.

1. Identify the actor, required act and governing procedural branch.
2. Establish the operative event, actual service route, completion and every controlling order.
3. Apply only the provision’s stated calendar model or minimum interval, with all necessary comparisons.
4. Check eligibility, local requirements, completed service or filing and any separate controlling period.

General Construction Law 20 ordinarily excludes the event day and counts calendar days. Establish the legal service-completion event before counting a completion-based period. CPLR 2103 additions require their stated service and procedural conditions; do not transfer pending-action paper additions automatically to original summons service. This guide publishes explanatory scenarios only.

Check General Construction Law 25-a and the actual applicable court, public holidays, orders and procedural branch. A closed-day rule for a forward act must not be used mechanically to shorten a minimum notice interval before a hearing. This guide supplies no automatic carry or inferred hearing date.

This guide requires the actual service provision and legal completion event. It publishes no automatic date or paid calculation. A delivery date alone cannot establish a completion-based appearance period.

Assume the applicable thirty-day appearance route and legal completion of service on October 6, 2026. Thirty calendar days after the established completion event reaches November 5. Mere earlier delivery is not that completion event. November 5 illustrates only the expressly established route. The guide publishes no automatic appearance date.

Assume valid CPLR 308(2) delivery and mailing, with the required proof filed October 6, 2026. The statutory ten-day completion interval reaches October 16. Thirty further days reaches Sunday, November 15. The hypothetical forward-act closed-day illustration reaches November 16. Proof filing, legal completion and the appearance period are different events. Do not count thirty days directly from proof filing.

Assume legal completion October 16, 2026, a thirty-day branch and no different controlling facts. The thirty-day endpoint falls on Sunday, November 15. Review the applicable forward-act extension and actual court conditions. A closed final day requires its own statutory check. This source guide provides no computed result.

Assume a defendant appears during the publication period on October 6, 2026. CPLR 320(d) deems publication service completed by that appearance. The ordinary natural-person delivery-and-mail completion model does not determine this event. Read the actual publication and appearance history. Do not apply a generic ten-day completion rule.

Method controls completion

CPLR 320(a) lists the qualifying routes. CPLR 308(2) and (4) use proof-filing-based completion; other routes and actual court directions require their own checks.

Appearance differs from answering

CPLR 320(a) permits several appearance acts. Serving the answer is one route, not the only possible appearance.

Summons without complaint

CPLR 3012(b) provides a demand-for-complaint and extended appearance sequence. The simultaneous summons-and-complaint assumption cannot be imposed on that route.

• This guide requires the actual service provision and legal completion event. It publishes no automatic date or paid calculation. A delivery date alone cannot establish a completion-based appearance period.
• Appearance under CPLR 320 is broader than serving an answer under CPLR 3012(c). Preserve separate questions because the permitted acts and complaint-sequence conditions differ.

• Identify the actual service provision and any service order.
• Preserve delivery, mailing, publication and proof-filing records as applicable.
• Establish legal completion separately from physical delivery.
• Check the complaint sequence and actual appearance act.
• Check any extension, qualifying motion and actual court conditions.
• Establish the legally sufficient appearance act, service and any required filing. An affidavit of service or delivery receipt does not itself constitute the defendant’s appearance.