How does California mail service change an existing period?

The established underlying service-based period, not merely an arbitrary date to which five days are added

The ordinary California-to-California mail branch adds five calendar days; the statute separately states ten, twelve and twenty-day branches.

Responsible actor. The party calculating an eligible service-based act or response period. Identify the underlying period and act, actual mail deposit and address locations, program status, notice direction and applicable statutory exception. Only the disclosed component is supported. Additional actual closures, altered orders and excluded service methods require separate review.

1. The established underlying service-based period, not merely an arbitrary date to which five days are added
2. The ordinary California-to-California mail branch adds five calendar days; the statute separately states ten, twelve and twenty-day branches.
3. Resolve the procedural comparisons described here before selecting an applicable clock. This page supplies no computed or paid date.
4. Compute the actual underlying eligible period with the correct addition and counting rule. Preserve service proof and the statute controlling the particular act.

CCP 12 excludes the triggering day for ordinary day periods. CCP 12a supplies the final judicial-holiday adjustment, including Saturdays and the CCP 135 holidays. CCP 12b addresses qualifying whole-day office closures. Court-day periods exclude intermediate Saturdays, Sundays and judicial holidays. Calendar-day periods include intermediate closed days. Rule 1.11 supplies Friday observance of a Saturday judicial holiday and Monday observance of a Sunday judicial holiday. The calendar includes Lincoln Day, March 31, Juneteenth, Native American Day and Thanksgiving Friday. It excludes Columbus Day and Good Friday as ordinary full judicial holidays. The observed New Year holiday on December 31, 2027 is confirmed in the county schedule. Actual additional closures require separate evidence.

These base components do not add mail, electronic, fax, express or overnight service time. CCP 1013 and 1010.6 identify eligible additions, service conditions and express exceptions. CCP 1005 supplies its own motion-delivery provisions and excludes CCP 1013 for its identified notices. New-trial and CCP 663a intention-notice filings do not receive the stated mail or electronic additions. Establish the actual service method and governing procedure before applying any addition. A summons-service completion event is not determined by the general document-service addition.

The official sections were reviewed, including the retained 2026 and operative-2027 CCP 473 and 415.20 editions. Publication coverage for day and court-day components begins January 1, 2026, or a later expressly stated section effective date. Year components begin no earlier than January 1, 2021, or the section’s later stated effective date, and assume the current reviewed branch applies. These are software coverage boundaries, not findings that an actual act is late. Displayed final dates are confined to the independently reviewed 2026 and 2027 judicial calendar. Closed backward base boundaries and closed minimum-deposition boundaries receive no computed or paid date because their exact adjustment is not implemented. Earlier editions, emergency measures, tolling, different service methods and actual additional closures require separate review.

Assume otherwise identical responses receive California-to-California mail and mail from another United States state. The stated five- and ten-calendar-day additions differ.

The preset lacks the underlying period, service locations and exceptions, and treats its input day as day one. No computed or paid standalone mail-extension date is published.

Location and program

Subsection (a) distinguishes both locations within California, one outside California but within the United States, the confidentiality-program address, and one outside the United States.

Excluded filings

The statute excludes notices of intention for new trial or CCP 663a vacatur and notices of appeal. Specific statutes can supply further exceptions.

Ordinary noticed motions

CCP 1005(b) excludes the identified motion, opposition and reply notices from CCP 1013 and supplies its own delivery additions.

Service methods and distinct statutory additions

These base components do not add mail, electronic, fax, express or overnight service time. CCP 1013 and 1010.6 identify eligible additions, service conditions and express exceptions. CCP 1005 supplies its own motion-delivery provisions and excludes CCP 1013 for its identified notices. New-trial and CCP 663a intention-notice filings do not receive the stated mail or electronic additions. Establish the actual service method and governing procedure before applying any addition. A summons-service completion event is not determined by the general document-service addition.

Edition and calendar coverage

The official sections were reviewed, including the retained 2026 and operative-2027 CCP 473 and 415.20 editions. Publication coverage for day and court-day components begins January 1, 2026, or a later expressly stated section effective date. Year components begin no earlier than January 1, 2021, or the section’s later stated effective date, and assume the current reviewed branch applies. These are software coverage boundaries, not findings that an actual act is late. Displayed final dates are confined to the independently reviewed 2026 and 2027 judicial calendar. Closed backward base boundaries and closed minimum-deposition boundaries receive no computed or paid date because their exact adjustment is not implemented. Earlier editions, emergency measures, tolling, different service methods and actual additional closures require separate review.

• Identify the underlying period and act, actual mail deposit and address locations, program status, notice direction and applicable statutory exception. Only the disclosed component is supported. Additional actual closures, altered orders and excluded service methods require separate review.
• The preset lacks the underlying period, service locations and exceptions, and treats its input day as day one. No computed or paid standalone mail-extension date is published.

• The established underlying service-based period, not merely an arbitrary date to which five days are added
• The ordinary California-to-California mail branch adds five calendar days; the statute separately states ten, twelve and twenty-day branches.
• Subsection (a) distinguishes both locations within California, one outside California but within the United States, the confidentiality-program address, and one outside the United States.
• The statute excludes notices of intention for new trial or CCP 663a vacatur and notices of appeal. Specific statutes can supply further exceptions.
• CCP 1005(b) excludes the identified motion, opposition and reply notices from CCP 1013 and supplies its own delivery additions.
• Compute the actual underlying eligible period with the correct addition and counting rule. Preserve service proof and the statute controlling the particular act.
• Where filing is required, distinguish accepted filing from service. CCP 1010.6(e)(3) gives the stated same-court-day treatment to qualifying electronic court receipt between 12:00 a.m. and 11:59:59 p.m.; noncourt-day receipt is deemed on the next court day. Its confirmation and rejection provisions still matter. Preserve the accepted filing confirmation, effective service evidence and applicable local requirements. Court-office paper availability and case-specific orders require separate review. This does not turn a service-only response, court determination, completed discovery or trial commencement into a filing-only act.