Peremptory challenge (CCP 170.6) to a non-all-purpose trial judge known 10+ days before trial
5 days before date set for trial, where the assigned or scheduled trial judge was known at least 10 days before, under Cal. Code Civ. Proc. 170.6(a)(2).
Rule text
If the judge, other than a judge assigned to the case for all purposes, court commissioner, or referee assigned to, or who is scheduled to try, the cause or hear the matter is known at least 10 days before the date set for trial or hearing, the motion shall be made at least 5 days before that date.
Calculate this deadline
- Trigger (Date set for trial, where the assigned or scheduled trial judge was known at least 10 days before): Friday, November 6, 2026.
- Count back 5 calendar days: Sunday, November 1, 2026.
- That day is a Sunday. Counting backward, this calculator uses the earlier court day so the full notice period is preserved: Friday, October 30, 2026 (see Cal. Code Civ. Proc. 12c).
Cal. Code Civ. Proc. 170.6(a)(2)
If the judge, other than a judge assigned to the case for all purposes, court commissioner, or referee assigned to, or who is scheduled to try, the cause or hear the matter is known at least 10 days before the date set for trial or hearing, the motion shall be made at least 5 days before that date.Official source
Cal. Code Civ. Proc. 12, 12a, 10; Gov. Code 6800, 6804, 6806; Cal. Rules of Court, rule 1.10 (for periods set by the Rules of Court)
CCP 12: "The time in which any act provided by law is to be done is computed by excluding the first day, and including the last, unless the last day is a holiday, and then it is also excluded." CCP 12a: "(a) If the last day for the performance of any act provided or required by law to be performed within a specified period of time is a holiday, then that period is hereby extended to and including the next day that is not a holiday. For purposes of this section, “holiday” means all day on Saturdays, all holidays specified in Section 135 and, to the extent provided in Section 12b, all days that by terms of Section 12b are required to be considered as holidays.(b) This section applies to Sections 659, 659a, and 921, and to all other provisions of law providing or requiring an act to be performed on a particular day or within a specified period of time, whether expressed in this or any other code or statute, ordinance, rule, or regulation." CCP 10: "Holidays within the meaning of this code are every Sunday and any other days that are specified or provided for as judicial holidays in Section 135." Gov. Code 6800: "The time in which any act provided by law is to be done is computed by excluding the first day, and including the last, unless the last day is a holiday, and then it is also excluded." Gov. Code 6804: "“Month” means a calendar month, unless otherwise expressed." Gov. Code 6806: "A day is the period of time between any midnight and the midnight following." CRC 1.10(a): "The time in which any act provided by these rules is to be performed is computed by excluding the first day and including the last, unless the last day is a Saturday, Sunday, or other legal holiday, and then it is also excluded." CRC 1.10(b): "Unless otherwise provided by law, if the last day for the performance of any act that is required by these rules to be performed within a specific period of time falls on a Saturday, Sunday, or other legal holiday, the period is extended to and includes the next day that is not a holiday."Official source
- Counting backward from a hearing or trial, when the day lands on a weekend or holiday we use the earlier court day. The rules do not state the direction expressly; confirm with the court.
- trial_continuance 'unclear': 'the date set for trial' most naturally means the date currently set, but whether a continuance revives a lapsed challenge is case law (UNVERIFIED). If the judge is not known 10 days ahead, the motion may be made later but never after the trial has commenced (first juror drawn, opening statement, or first witness sworn). Backward roll: previous court day.
- If the clerk's office is closed or inaccessible on the last day (weather, emergency or local closure orders), the deadline may be extended. Check local orders.
This calculator applies the cited rules to the dates you enter. It is not legal advice. Court orders, local rules, and case-specific facts can change a deadline; verify before relying on it. Rule set pending attorney review.
Worked example
Date set for trial, where the assigned or scheduled trial judge was known at least 10 days before on Monday, March 15, 2027, personal service: due Wednesday, March 10, 2027.
- Trigger (Date set for trial, where the assigned or scheduled trial judge was known at least 10 days before): Monday, March 15, 2027.
- Count back 5 calendar days: Wednesday, March 10, 2027.
Notes
trial_continuance 'unclear': 'the date set for trial' most naturally means the date currently set, but whether a continuance revives a lapsed challenge is case law (UNVERIFIED). If the judge is not known 10 days ahead, the motion may be made later but never after the trial has commenced (first juror drawn, opening statement, or first witness sworn). Backward roll: previous court day.
Related deadlines
- Motion to continue a hearing: written notice filed and served (2 court days before)
- Motion to continue trial: written notice filed and served (2 court days before)
- Attorney's written notice of scheduling conflict to calendar clerks (2 court days after)
- Pretrial motion and memorandum: serve and file (10 court days before)
- Opposition to pretrial motion (5 court days before)
- Reply on pretrial motion (2 court days before)
- Proof of service of pretrial moving papers (5 court days before)
- Felony suppression motion (special hearing): notice to the People (10 court days before)
Local rules by county
County local rules and courtroom procedures can add to or change this deadline. Pick a county to calculate with them applied.
- Alameda
- Alpine
- Amador
- Butte
- Calaveras
- Colusa
- Contra Costa
- Del Norte
- El Dorado
- Fresno
- Glenn
- Humboldt
- Imperial
- Inyo
- Kern
- Kings
- Lake
- Lassen
- Los Angeles
- Madera
- Marin
- Mariposa
- Mendocino
- Merced
- Modoc
- Mono
- Monterey
- Napa
- Nevada
- Orange
- Placer
- Plumas
- Riverside
- Sacramento
- San Benito
- San Bernardino
- San Diego
- San Francisco
- San Joaquin
- San Luis Obispo
- San Mateo
- Santa Barbara
- Santa Clara
- Santa Cruz
- Shasta
- Sierra
- Siskiyou
- Solano
- Sonoma
- Stanislaus
- Sutter
- Tehama
- Trinity
- Tulare
- Tuolumne
- Ventura
- Yolo
- Yuba
Rules current as of 2026-10-25. Confirm against the official source and any local rule or court order before relying on a date. Rules changelog.