California · Interactive tool
San Francisco document delivery date explorer
Pick the exact document first, because the rule is document-specific, then compare two service methods side by side. The explorer shows the notice-period threshold. Unlawful detainer filing dates are deliberately unsupported until mapped.
Document and dates
Civ. Code §§827, 1954 and 1950.5. Mailing extensions are notice periods, not proof of actual receipt. California DRE Landlords’ and Tenants’ Rights Guide.
Method A
- Delivered on
- Oct 27, 2026
- Notice period
- 30 days
- Notice period ends
- Nov 26, 2026
- Effective date
- Confirm anniversary, licence and applicable rent limits in the planner.
Method B
- Mailed on
- Oct 27, 2026
- Notice period
- 35 days (includes 5 mailing days within California)
- Notice period ends
- Dec 1, 2026
- Effective date
- Confirm anniversary, licence and applicable rent limits in the planner.
Rent increase notice (Civ. Code §827): 30 days for 10% or less in 12 months, 90 days above; add 5 days for mailing within California. Out-of-state mailing needs separate review. Ordinance units also need the licence and anniversary checks. The threshold is not automatically rounded to the first of the month. Given Oct 27, 2026. This comparison does not establish that a notice or entry is lawful.