(1) Where a definite time for the performance of a claim is fixed, the obligor shall be responsible for delay as from the commencement of such time. If an indefinite time for the performance of a claim is fixed, the obligor shall be responsible for any delay as from the time when the obligor has become aware of the arrival of the time for performance.
(2) If a time for the performance of a claim is not fixed, the obligor shall be responsible for the delay as from the time when demand for performance has been made upon him or her.