Legal analysis: If both parties are willing and do not violate the mandatory provisions of the law, the signing time of the contract is not a necessary clause of the contract. Without it, the contract will still be valid. If the parties conclude a contract in the form of a contract, the contract is established when both parties sign, seal or fingerprint the contract. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it.

Legal basis: Article 470 of the "People's Republic of China and Civil Code" The content of the contract is agreed upon by the parties and generally includes the following clauses: (1) The name and address of the parties; ( 2) Subject matter; (3) Quantity; (4) Quality; (5) Price or remuneration; (6) Time limit, place and method of performance; (7) Liability for breach of contract; (8) Methods to resolve disputes. The parties may conclude a contract by referring to the model texts of various types of contracts.