Article 61 Contract Law After a contract comes into effect, the parties have not agreed or clearly agreed on the quality, price or remuneration, place of performance, etc. They can supplement the agreement; If a supplementary agreement cannot be reached, it shall be determined in accordance with the relevant provisions of the contract or trading habits.
Article 62 Where the parties have not clearly agreed on the contents of the contract and cannot be determined according to the provisions of Article 61 of this Law, the following provisions shall apply:
(4) If the time limit for performance is not clear, the debtor may perform at any time, and the creditor may also request performance at any time, but the other party shall be given the necessary preparation time.