Cal. Civ. Code § 1657 : CALIFORNIA CIVIL CODE — OBLIGATIONS — CONTRACTS — INTERPRETATION OF CONTRACTS — No time specified for performance TEXT PDF If no time is specified for the performance of an act required to be performed, a reasonable time is allowed. If the act is in its nature capable of being done instantly-as, for example, if it consists in the payment of money only-it must be performed immediately upon the thing to be done being exactly ascertained. Ca. Civ. Code § 1657 Enacted 1872.