Delaware courts
What is the deadline for supreme Court: trial court's order certifying or refusing to certify an interlocutory appeal?
Supreme Court: trial court's order certifying or refusing to certify an interlocutory appeal is governed by Supr. Ct. R. 42(c)(iii). This page does not calculate a date. Two mutually exclusive periods depending on whether a response was filed (10 days from response, otherwise 20 days from application). Read the rule text and the noted conditions before relying on any date.
Read why no date is calculated- Period
- 10 calendar days
- Trigger
- Filing of the response to the application, or if there is none, filing of the application
- Rule
- Supr. Ct. R. 42(c)(iii)
Delaware rules as encoded, holiday calendar verified
Source guide · No automated date
Why this page does not calculate a date
Two mutually exclusive periods depending on whether a response was filed (10 days from response, otherwise 20 days from application). The engine must branch on whether a response exists rather than defaulting to either figure. Flagged for count mode, not for the period. The number of days is confirmed against the operative text. The engine must not apply the catalogue-level shortPeriodThreshold of 10 to this entry: the governing computation rule is Supr. Ct. R. 11(a), whose threshold is 'less than 7 days', so intermediate Saturdays, Sundays and legal holidays are counted. Source: Rules of the Supreme Court of the State of Delaware, official text current through 2 February 2026, courts.delaware.gov.
Read Rules of the Delaware State CourtsWithin 10 days after filing of the response or, if there is none, within 20 days after filing the application, the trial court shall enter an order certifying or refusing to certify the interlocutory appeal
Supr. Ct. R. 42(c)(iii)
Which date starts the 10-day period?
The period runs from the filing of the response to the application, or if there is none, filing of the application.
Count forward from the trigger event. Confirm the event on the docket or in the service record before entering a date.
Read Rules of the Delaware State CourtsWithin 10 days after filing of the response or, if there is none, within 20 days after filing the application, the trial court shall enter an order certifying or refusing to certify the interlocutory appeal
Supr. Ct. R. 42(c)(iii)
This period runs from the filing date on the docket. Do not substitute the date of service, the date an order was entered or the day you learned of the filing.
Which date do I enter?How are the 10 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 Delaware legal holiday, continue to the next day that is not one of those.
Exclude the trigger day and count calendar days under Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a).
If the final day is a Saturday, Sunday or legal holiday in the Delaware calendar, the computation rule carries it to the next open day.
Delaware computes time under Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a). The applied calendar bundles the state legal holidays for the covered years; court-specific closures and emergency orders are not bundled.
Read Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a)The calculation gives the ordinary national-rule date. Check relevant holidays, the court’s accessibility and its filing cutoff separately.
Review the filing checklistWhy no worked calculation is shown
No date is calculated on this page because the encoded provision could not be reduced to one fixed period. Read the rule text, the starting event and the noted branches, then confirm the period in the current rules before relying on any date.
Two mutually exclusive periods depending on whether a response was filed (10 days from response, otherwise 20 days from application). The engine must branch on whether a response exists rather than defaulting to either figure. Flagged for count mode, not for the period. The number of days is confirmed against the operative text. The engine must not apply the catalogue-level shortPeriodThreshold of 10 to this entry: the governing computation rule is Supr. Ct. R. 11(a), whose threshold is 'less than 7 days', so intermediate Saturdays, Sundays and legal holidays are counted. Source: Rules of the Supreme Court of the State of Delaware, official text current through 2 February 2026, courts.delaware.gov.
Can an order, motion or extension change the deadline?
- Extensions
- None stated; this constrains the trial court.
- 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.
- None stated; this constrains the trial court.
- A stipulation, scheduling order, standing order or local rule can set a different period and controls over the national default.
- Two mutually exclusive periods depending on whether a response was filed (10 days from response, otherwise 20 days from application). The engine must branch on whether a response exists rather than defaulting to either figure. Flagged for count mode, not for the period. The number of days is confirmed against the operative text. The engine must not apply the catalogue-level shortPeriodThreshold of 10 to this entry: the governing computation rule is Supr. Ct. R. 11(a), whose threshold is 'less than 7 days', so intermediate Saturdays, Sundays and legal holidays are counted. Source: Rules of the Supreme Court of the State of Delaware, official text current through 2 February 2026, courts.delaware.gov.
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 10-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 filing of the response to the application, or if there is none, filing of the application, or when I first learned of it?
The period runs from the filing of the response to the application, or if there is none, filing of the application 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 10 calendar days or business days?
Calendar days. Count intermediate weekends and holidays. If the final day is a Saturday, Sunday or legal holiday, Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a) carries it forward to the next day that is not one of those.
Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a)Which time zone and filing cutoff apply?
Delaware filing rules and the court’s electronic filing system set the cutoff. This calculator does not verify filing hours or system availability.
Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a)What if the court is inaccessible on the last day?
Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a) and the court’s administrative orders govern an inaccessible clerk’s office. Check the court’s notices. This calculator does not predict a closure.
Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a)Extensions and local rules
Can the court extend this deadline?
None stated; this constrains the trial court. 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 |
|---|---|
| Supr. Ct. R. 42(c)(iii) | Trigger and period |
| Ct. Ch. R. 6(a) (Court of Chancery). Divergent sibling provisions: Super. Ct. Civ. R. 6(a) | 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.