The delivery time of FBM is set by the seller and can be set by following the steps below:

1. Log in to the Seller Center and enter the "My Store" page; 2. Select "Delivery Settings" in the left menu; 3. On the delivery settings page, you can set parameters such as delivery time, delivery time, return and exchange time, etc.; 4. After saving the settings and publishing the product, buyers will see the estimated delivery time and arrival time when purchasing. It should be noted that sellers should set the delivery time reasonably according to actual conditions. Too short a delivery time can easily lead to failure to ship on time, while too long a delivery time may make buyers wait too long and cause unhappiness. In addition, clearly stating the delivery time on the product details page can also improve customer experience.