P.R. Laws tit. 19, § 513
2019-02-20 00:00:00+00
(a) An instrument may be antedated or postdated. The date stated determines the time of payment if the instrument is payable at a fixed period after [the] date. Except as provided in § 951(c) of this title, an instrument payable on demand is not payable before the date of the instrument.
(b) If an instrument is undated, its date is the date of its issue or, in the case of an unissued instrument, the date it first comes into possession of a holder.
History —Aug. 17, 1995, No. 208, § 2-113; Aug. 31, 1996, No. 176, § 2.