An action to enforce a right or obligation arising under this chapter must be commenced within 1 year after the expiration date of the relevant letter of credit or 1 year after the cause of action accrues, whichever occurs later. A cause of action accrues when the breach occurs, regardless of the aggrieved party's lack of knowledge of the breach.
Fla. Stat. § 675.115
s. 5-115, U.C.C.