Cal. Civ. Proc. Code § 2033.250

(a) Within 30 days after service of requests for admission, the party to whom the requests are directed shall serve the original of the response to them on the requesting party, and a copy of the response on all other parties who have appeared, unless on motion of the requesting party the court has shortened the time for response, or unless on motion of the responding party the court has extended the time for response.

(b) Notwithstanding subdivision (a), in an unlawful detainer action or other proceeding under Chapter 4 (commencing with Section 1159) of Title 3 of Part 3, the party to whom the request is directed shall have at least five days from the date of service to respond, unless on motion of the requesting party the court has shortened the time for response, or unless on motion of the responding party the court has extended the time for response.