1. The delivery time is stipulated in the house purchase contract signed by the buyer and the seller. You can refer to the specific agreed time in the purchase contract.

2. If the developer fails to deliver as scheduled, the developer will breach the contract. According to the relevant provisions of the Contract Law, the seller shall pay liquidated damages or compensate for the losses if the delivery is overdue. The parties may agree that when one party breaches the contract, it shall pay a certain amount of liquidated damages to the other party according to the situation of breach of contract, and may also agree on the calculation method of the amount of compensation for breach of contract.

3. If the contract does not stipulate the amount of liquidated damages or the calculation method of loss compensation, it can be determined according to the rent standard of similar houses in the same lot during the extended delivery period announced by the relevant competent department or evaluated by a qualified real estate appraisal agency.