To count contingency days in California real estate, treat the Date of Acceptance on your CAR Residential Purchase Agreement as Day 0, then count every calendar day after it. Day 1 is the day after acceptance. The standard investigation, appraisal, title, and disclosure contingencies run 17 calendar days; the loan contingency runs 21. If the last day of the period lands on a Sunday or a California-recognized holiday, the deadline rolls to the next day that isn’t one.
Day 0 Is the Date of Acceptance
Every contingency deadline in a CAR purchase agreement is measured from a single anchor: the Date of Acceptance. That is the date the last party signs and the fully executed contract is delivered back to the other side. That date is Day 0. The first full calendar day after it is Day 1.
Say a buyer signs an offer on Monday, the seller counters on Tuesday, and the buyer accepts the counter on Wednesday evening. Wednesday is Day 0. Thursday is Day 1. Get this wrong and every deadline that follows is off by a day.
Calendar Days, Not Business Days
California Code of Civil Procedure Section 12 sets the counting rule: “the time in which any act provided by law is to be done is computed by excluding the first day, and including the last.”1California Legislative Information. California Code of Civil Procedure Section 12 Civil Code Section 10 uses the same language.2California Legislative Information. California Civil Code CIV 10
Unless the purchase agreement says otherwise, “days” in the CAR forms means calendar days. Saturdays, Sundays, and holidays all count as you move through the period. They only affect the math when the final day lands on one.
Worked Examples: 17-Day and 21-Day Periods
The default CAR purchase agreement gives buyers 17 calendar days for investigation, appraisal, title review, and disclosure contingencies, and 21 calendar days for the loan contingency.3California Association of REALTORS. Quick Guide – Contingencies and Contingency Removal
Suppose the Date of Acceptance is August 1. August 1 is Day 0. August 2 is Day 1. Counting forward 17 calendar days, the last day of the investigation contingency is August 18. From the same acceptance date, the 21-day loan contingency ends on August 22.
One wrinkle: for contingencies tied to documents the buyer must review, the deadline is 17 days after acceptance or 5 days after the seller delivers those documents, whichever is later. A slow seller can push the buyer’s clock out.
When the Last Day Is a Weekend or Holiday
If the final day of the contingency period falls on a holiday, it’s excluded and the deadline moves to the next day that isn’t a holiday.1California Legislative Information. California Code of Civil Procedure Section 12 Every Sunday counts as a holiday under California law, so a period that ends on a Sunday rolls to Monday. If that Monday is also a recognized holiday, it rolls to Tuesday.
Back to the August 1 example. If the 17-day period would normally end on Sunday, August 18, the deadline moves to Monday, August 19. If that Monday happened to be a state holiday, it would move again to Tuesday.
California Holidays That Extend Deadlines
California recognizes more holidays than the federal calendar. Under Government Code Section 6700, they include:4California Legislative Information. California Government Code GOV 6700
- Every Sunday
- New Year’s Day: January 1
- Martin Luther King Jr. Day: third Monday in January
- Lunar New Year: date varies
- Lincoln Day: February 12
- Presidents’ Day: third Monday in February
- Cesar Chavez Day: March 31
- Genocide Remembrance Day: April 24
- Memorial Day: last Monday in May
- Juneteenth: June 19
- Independence Day: July 4
- Labor Day: first Monday in September
- Admission Day: September 9
- Native American Day: fourth Friday in September
- Columbus Day: second Monday in October
- Veterans Day: November 11
- Thanksgiving Day: fourth Thursday in November
- Christmas Day: December 25
Cesar Chavez Day, Admission Day, and Native American Day are uniquely Californian and easy to miss if you only check the federal list. A deadline landing on any of them buys an extra day.
What “Missing” the Deadline Actually Means
The CAR purchase agreement uses active contingency removal. Contingencies do not fall away on their own when the clock runs out. A buyer who has not signed a written removal still holds the contingency, even after the 17th or 21st day has come and gone.
What the deadline does is give the seller a tool. Once it passes without a written removal, the seller can deliver a Notice to Buyer to Perform. That notice gives the buyer two additional calendar days to either remove the contingency or cancel the contract.3California Association of REALTORS. Quick Guide – Contingencies and Contingency Removal A seller can send the NBP as early as two days before the contingency deadline, but not earlier. If the buyer doesn’t act within the two-day window, the seller can then cancel.
The seller cannot skip the notice. Without a properly delivered NBP, the seller has no right to cancel no matter how far past the deadline the buyer is.
Counting Mistakes That Cost People Money
The most common error is treating the Date of Acceptance as Day 1 instead of Day 0. Every deadline that follows is off by a day, which is enough to trigger a premature NBP or a late removal.
The second is checking only the federal holiday list. A deadline on September 9 or March 31 catches buyers and agents who don’t realize California recognizes those days.
The third is assuming contingencies expire on their own. Because removal is active, a buyer a day or two past the deadline hasn’t necessarily lost anything, but that same buyer also can’t ignore an NBP once it arrives. The two-day response window is short and it’s also measured in calendar days.