Free sourced deadline calculator

Montana civil deadline calculator

Calculate 2 fixed time limits from the released Montana pack. Choose the deadline and trigger date to see the raw date, calculation steps, citation and checks that still need to be made.

Cited time limits: 2
Rule review: 6 August 2026
Output: Review date

Check the result before use

This is a self-check calculation of the sourced base period, not a final filing instruction. Montana legal holidays, court-specific closures and emergency closure orders are not bundled. Every calculated date is a review date: check M. R. Civ. P. 6(a) and the current court calendar before filing or serving. Check the cited rule, the correct factual branch, every order and any electronic-filing cut-off.

State, territory or federal system

Court, tribunal or institution

Rule period

21 days from Service of the summons and complaint on the defendant

M. R. Civ. P. 12(a)(1)(A)AdvisoryVerify against the rules

This is the ordinary answer branch. A waiver of service, a different party, a statute or a timely Rule 12 motion may produce another period.

When did the clock start?

Legal disclaimer

Deadline Engine calculates dates from encoded procedural rules. It is software, not legal advice, and no output is approved for your matter. Check the jurisdiction, inputs, current cited rule, facts and any order or agreement before recording or using the date. Responsibility for the operative deadline and diary remains with you.

Exact released scope

Deadlines covered by this calculator

Every row below is rendered from the calculator catalogue. It shows the encoded base period, exact trigger, citation, counting direction and retained primary source. Rules or orders outside this list are not implied to be covered.

Answer an ordinary Montana civil complaint

21 days

Trigger: Service of the summons and complaint on the defendant
Citation: M. R. Civ. P. 12(a)(1)(A)
Counting basis: trigger day excluded, counted forwards
Scope: This is the ordinary answer branch. A waiver of service, a different party, a statute or a timely Rule 12 motion may produce another period.
Relief or exception: A court may alter time only as the Montana Rules of Civil Procedure and a valid court order permit.
Check before use: This is the sourced base period, not a final filing date. Apply the cited computation rule, current legal holidays, court closures, service branch and any order before use.

Serve a responsive pleading after a Montana Rule 12 motion is denied or postponed

14 days

Trigger: Notice of the court's action denying the motion or postponing disposition until trial
Citation: M. R. Civ. P. 12(a)(2)(A)
Counting basis: trigger day excluded, counted forwards
Scope: The separate branch for a more definite statement starts from service of the amended pleading and is not included here.
Relief or exception: The rule applies unless the court sets a different time. The calculator does not assume an extension.
Check before use: This is the sourced base period, not a final filing date. Apply the cited computation rule, current legal holidays, court closures, service branch and any order before use.

Source boundary

Official sources and calculation basis

The base-period calculation uses M. R. Civ. P. 6(a). The source pack was reviewed on 6 August 2026. A newer amendment, local rule, closure direction or case-specific order can change the date.

Official source 1 · courts.mt.govOpen source

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