Illinois Court Deadline Calculator

Calculate deadlines under 735 ILCS 5 and Illinois Supreme Court Rules with state-specific holiday exclusion and service method adjustments.

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Illinois Court Deadline Calculator
Calculate court deadlines under 735 ILCS 5 and Illinois Supreme Court Rules

Illinois Court Deadline Calculator

Calculate deadlines under 735 ILCS 5 (Illinois Code of Civil Procedure) and Illinois Supreme Court Rules with state holiday exclusion.

Illinois
Important: This tool provides deadline calculations based on published court rules. Results are not legal advice. Always verify deadlines with the applicable court rules and consult with counsel when in doubt.
Calculate Deadline
Enter the case details to calculate the court deadline

Options

Illinois Supreme Court Rules
Essential Illinois rules for computing time in court proceedings

Rule 131 – Computation of Time

First day excluded; last day included unless weekend or holiday — extends to next court day

735 ILCS 5/2-301 – Appearance

30 days from service to file appearance; same period for answer

Rule 11 – Service of Papers

Service by mail adds 3 days; electronic service adds 1 day to response time

Rule 137 – Attorney Certification

All filed papers must be signed and certified by the attorney of record

Illinois Supreme Court Rules (Official)
Common Illinois Deadlines
Typical deadlines in Illinois state court practice
Appearance & Answer30 days
Motion to Dismiss (735 ILCS 5/2-615)30 days
Response to Motion21 days
Reply Brief14 days
Notice of Appeal30 days
Summary Judgment Response28 days

* Deadlines vary by court level and local rules. Verify with your specific circuit court.

Illinois Court System Overview
Understanding Illinois's unified court structure

Supreme Court

Highest court, final appellate jurisdiction

7 Justices

Appellate Court

Intermediate appellate courts

5 Districts

Circuit Courts

Trial courts of general jurisdiction

24 Circuits
Illinois Practice Tips
Expert guidance for Illinois court deadline management

Illinois Best Practices

  • • File appearance within 30 days of service
  • • Check Cook County General Orders if in First Circuit
  • • Confirm e-filing requirements for your circuit
  • • Calendar both state and county holidays
  • • Track mail service extensions (+3 days)

Common Illinois Pitfalls

  • • Missing Cook County local rule requirements
  • • Forgetting mail service time additions
  • • Confusing Illinois state holidays with federal
  • • Not filing appearance before answer
  • • Overlooking circuit-specific scheduling orders
How to Use This Calculator
Step-by-step instructions for accurate deadline calculations
1

Select Your Event Date

Enter the date of service, filing, or court order. Illinois Supreme Court Rule 131 governs time computation, excluding the first day and including the last day.

2

Choose Response Type

Select your required filing: Answer (30 days), Appearance (30 days), Motion to Dismiss (varies), or Opposition (varies by motion type).

3

Specify Service Method

Illinois allows personal service, certified mail, or electronic service. Mail service adds time to the response deadline under Illinois Supreme Court Rules.

4

Set Court Day Calculation

Illinois generally uses calendar days for most deadlines. Court days apply to certain motion practice. Verify your specific deadline type.

5

Verify Holiday Exclusions

Illinois state holidays are excluded. If the last day falls on a weekend or Illinois state holiday, the deadline extends to the next court day.

6

Check Local Court Rules

Cook County Circuit Court has specific local rules that differ from downstate courts. Always verify with your specific circuit's requirements.