New York Laws
Part 1 - Short Title, Form and Interpretation
3-109 - Definite Time.

(1) An instrument is payable at a definite time if by its terms it is
payable
(a) on or before a stated date or at a fixed period after a
stated date; or
(b) at a fixed period after sight; or
(c) at a definite time subject to any acceleration; or
(d) at a definite time subject to extension at the option of the
holder, or to extension to a further definite time at the
option of the maker or acceptor or automatically upon or
after a specified act or event.
(2) An instrument which by its terms is otherwise payable only upon an
act or event uncertain as to time of occurrence is not payable at a
definite time even though the act or event has occurred.

Structure New York Laws