When must a Chancery supplemental pleading be answered?

Service of the supplemental pleading permitted by the Court

Confirm the pleading supplements later events rather than merely amending earlier allegations. Preserve actual permission and service.

Responsible actor. The opposing party responding to the permitted supplemental pleading. Use a Court-permitted supplemental pleading effectively served otherwise than exclusively by mail, with no different controlling direction.

1. Use a Court-permitted supplemental pleading effectively served otherwise than exclusively by mail, with no different controlling direction.
2. Exclude the trigger day and count 10 days that are not Saturdays, Sundays or legal holidays under Rule 6(a)(1). These are short-period eligible days, not consecutive calendar days.
3. Check the actual holidays, additional closures and applicable electronic or paper boundary.
4. Serve and file the required response to the permitted supplemental pleading, preserving the Court’s permission and completed service.

Rule 6(a)(1) excludes the event day. Periods below eleven days exclude intermediate Saturdays, Sundays and legal holidays; eleven days or more include them. A final weekend or legal holiday moves forward for an after-event period and backward for a before-event period. Rule 6(a)(3) separately addresses actual Register inaccessibility for filings. Rule 6(a)(5) includes section 501 holidays and days declared by the Governor. Good Friday and Thanksgiving Friday are Delaware holidays. Sunday July 4, 2027 is observed Monday July 5. Check county-specific Sussex Return Day and additional actual closures separately; the bundled calendar does not determine those filing conditions.

Rule 6(c) adds three calendar days after the ordinary Rule 6(a) period only for an act measured after service made exclusively by mail. It applies to party acts, not Court acts. Electronic service, an entry-based clock and a filing-based clock do not acquire that addition merely because a paper copy is mailed. These calculations show the disclosed nonexclusive-mail base component; they do not implement the mail-only addition or infer service effectiveness.

These reviewed calculators use the official edition current as of June 1, 2026. Events before that date and backward periods crossing before that date receive no computed or paid date. This is publication coverage, not a finding that an actual procedural act is late. Historical editions, emergency measures, court-modified dates and actual additional closures require separate review.

Fictitious example

Use a Court-permitted supplemental pleading effectively served otherwise than exclusively by mail, with no different controlling direction. Ordinary current-edition facts, no changed order and no exclusively mailed incoming service.

Fictitious current-edition facts. This is the disclosed component with no altered order or additional actual closure. It does not establish effective service, completed filing, judicial action or procedural entitlement. Exclusively mailed incoming-service additions require separate review.

Permission prerequisite

Supplementation requires a motion and Court permission; even an initially defective pleading may be supplemented.

Different amendment branch

Amended-pleading responses compare the unexpired original period with ten days; this separate supplemental branch does not state that comparison.

Mail-only service and actual court schedule

Rule 6(c) adds three calendar days after the ordinary Rule 6(a) period only for an act measured after service made exclusively by mail. It applies to party acts, not Court acts. Electronic service, an entry-based clock and a filing-based clock do not acquire that addition merely because a paper copy is mailed. These calculations show the disclosed nonexclusive-mail base component; they do not implement the mail-only addition or infer service effectiveness.

Current edition and historical scope

These reviewed calculators use the official edition current as of June 1, 2026. Events before that date and backward periods crossing before that date receive no computed or paid date. This is publication coverage, not a finding that an actual procedural act is late. Historical editions, emergency measures, court-modified dates and actual additional closures require separate review.

• Use a Court-permitted supplemental pleading effectively served otherwise than exclusively by mail, with no different controlling direction.
• The base calculation does not obtain an extension, resolve a different branch or establish that the responsible actor completed the required act.

• Service of the supplemental pleading permitted by the Court
• Confirm the pleading supplements later events rather than merely amending earlier allegations. Preserve actual permission and service.
• Supplementation requires a motion and Court permission; even an initially defective pleading may be supplemented.
• Amended-pleading responses compare the unexpired original period with ten days; this separate supplemental branch does not state that comparison.
• Serve and file the required response to the permitted supplemental pleading, preserving the Court’s permission and completed service.
• For electronic service and filing, Rule 5(d) uses midnight for an original complaint, notice of appeal, or paper in a summary proceeding or an action ordered expedited. Other papers in other actions must be served or filed by 5:00 p.m. Use Delaware local court time and preserve actual completed transmission and docket treatment. Do not replace the ordinary boundary with a federal midnight rule. Rule 5(c)(2)(B) permits self-represented delivery to the Register with the required fee, deemed filed when delivered. Check actual office availability. Rule 5(e) permits the Court, on satisfactory proof, to deem an unsuccessful electronic attempt timely; relief is not automatic.