Pick a deadline and enter the trigger date. The result applies Cal. Code Civ. Proc. 12, 12a, 12b, 10, 17(b)(4), applied to probate proceedings by Prob. Code 1000; Cal. Rules of Court, rule 1.10 (counting, weekends and court holidays), service-method extensions where the law allows them, and the rule for that deadline, with each step and citation shown. Scope: San Mateo County local rules are included below (marked with the court name), layered on these base rules. California superior court probate proceedings: decedents' estates, trusts, guardianships, and conservatorships under the Probate Code; Code of Civil Procedure rules of practice as applied by Prob. Code 1000; Cal. Rules of Court Title 7 (rules 7.51, 7.801, 7.802 checked) and rule 8.104 for appeals. Statewide only; local probate rules not included.. Rules current as of 2026-10-23.
San Mateo County local rules independently reviewed (effective 2026-07-01)
Deadline
Thursday, October 22, 2026
Trigger (Hearing date): Friday, November 6, 2026.
Count back 15 calendar days: Thursday, October 22, 2026.
Rules applied
Cal. Prob. Code 1220(a)(1)
(a) If notice of hearing is required to be given as provided in this section:(1) At least 15 days before the time set for the hearing, the petitioner or the person filing the report, account, or other paper shall cause notice of the time and place of the hearing to be delivered pursuant to Section 1215 to the persons required to be given notice.
Official sourceCal. Code Civ. Proc. 12, 12a, 12b, 10, 17(b)(4), applied to probate proceedings by Prob. Code 1000; Cal. Rules of Court, rule 1.10
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." CCP 12b: "If any city, county, state, or public office, other than a branch office, is closed for the whole of any day, insofar as the business of that office is concerned, that day shall be considered as a holiday for the purposes of computing time under Sections 12 and 12a." 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." CCP 17(b)(4): "“Month” means a calendar month, unless otherwise expressed." Prob. Code 1000(a): "Except to the extent that this code provides applicable rules, the rules of practice applicable to civil actions, including discovery proceedings and proceedings under Title 3a (commencing with Section 391) of Part 2 of the Code of Civil Procedure, apply to, and constitute the rules of practice in, proceedings under this code."
Last day to mail/deliver notice. Prob. Code 1215(a)(4): the period of notice is not extended for mail; 1215(c)(2) same for electronic delivery. Default recipients: personal representative and persons who requested special notice (1220(a)(2)); specific statutes add others (e.g., 11000 for accounts, 12201 for status reports, 9103(e) late-claim petitions, 8906(c) appraisal objections). CRC 7.51: mailed notice must go individually and directly to each person; notice to a represented person goes per Prob. Code 1214. Court may dispense with notice for good cause (1220(c)). Posting (Prob. Code 1230, 15 days before hearing) is a clerk duty where required.
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.
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Civil law and motion tentative rulings posted after 3:00 p.m. on the court day before the hearing; notice of intent to contest due by 4:00 p.m. that day by email or phone to the department and all parties. San Mateo Super. Ct. Local Rule 3.403(a), (b)
Civil motion hearing dates are self-selected from the assigned department's Law & Motion Calendar Availability page; complex cases call the department. San Mateo Super. Ct. Local Rule 3.402
General civil ex parte: heard two days per week at 1:30 p.m. in assigned department; papers and fee proof to courtroom clerk no later than 15 minutes before; remote appearance requires papers served, submitted and fee paid by 10:00 a.m. two court days before. San Mateo Super. Ct. Local Rule 3.500(a), (b), (e)
Presiding Judge ex parte calendar (and civil harassment/workplace violence TROs): 2:00 p.m. daily; papers and fee proof to courtroom clerk by 2:15 p.m. San Mateo Super. Ct. Local Rule 3.19(B)
Family law stipulated continuances must be requested by 12:00 noon the court day before the hearing, otherwise an appearance is required. San Mateo Super. Ct. Local Rule 5.7(E)(1)-(2)
Family law order shortening time: service may be shortened to no less than two court days before hearing and five calendar days before a deposition. San Mateo Super. Ct. Local Rule 5.6(E)
Civil jury trial: on assignment to trial department, file in limine motions/responses, trial briefs, statement of the case and witness list; exhibits ready with copies at assignment. San Mateo Super. Ct. Local Rules 2.20, 2.22
Juvenile dependency: social worker must notify the Private Defender Program juvenile office of the need for appointed counsel by 9:00 a.m. the court day before the first hearing. San Mateo Super. Ct. Local Rule 6.3(c)(2)
Unlawful detainer: on filing of UD-150 the court sets a pretrial conference and trial within 20 days; the pretrial conference is held approximately four days before trial before the Civil Commissioner with mandatory in-person attendance. San Mateo Super. Ct. Local Rule 3.1204(a)-(b)
Criminal: in time-waived misdemeanors, pretrial motions should be heard before the pretrial conference; a later hearing requires a filed and approved good-cause declaration. Trial dates and evidentiary hearings may be continued only in open court. San Mateo Super. Ct. Local Rule 9.1(c); 9.3
Complex/mass tort: Class actions, PAGA, provisionally complex, construction defect, JCCP and derivative actions are automatically deemed complex and single-assigned; initial CMC/trial setting within 90 days; contested designations set within 30 days before the Civil Supervising Judge; mandatory e-service. No fixed party day-count schedule.
Complex/mass tort: Writ petitions and CEQA actions: CMC/trial setting within 60 days before the assigned judge; exempt from general case management and ADR rules.
Under Cal. Rules of Court, rule 3.20, county rules cannot change statewide deadlines for pleadings, motions, discovery or ex parte applications; local rules that tried to were excluded from the calculator.