The processing time is the length of time the shop needs to get an order ready to dispatch or the length of time between when you place an order and when the shop dispatches your order.
If an order is a custom, the processing time will include the time it takes to create the custom item.
Sellers can set the processing times for items in their shop. The processing time can vary from item to item within one shop.
You can find the processing time for an item on the item’s listing page.