ETS (Estimated Time of Sailing)

Estimated Time of Sailing (ETS) refers to the planned date when the carrying vessel departs from the port of loading, and it is a key time node in foreign trade and logistics. It is usually provided by the shipping company or freight forwarder after booking confirmation, and is used to arrange customs declaration, cut-off, container loading, and subsequent transportation. Use cases include: promising delivery time to customers, preparing packing lists and invoices, and applying for the latest shipment date under a letter of credit. Notes: ETS is an estimated time and may change due to weather, port congestion, or schedule adjustments, so it should be updated regularly and buffer time should be reserved; it differs from ETD (Estimated Time of Departure), which emphasizes leaving the berth, while ETS emphasizes the vessel's actual sailing, though they are often used interchangeably in practice; it corresponds to ETA (Estimated Time of Arrival), and together they form the voyage timeline. Differences: ETS focuses on the sailing action, ETD focuses on the departure action, and CLS (Closing Date) is the deadline by which cargo must complete customs declaration, usually earlier than ETS. Foreign trade practitioners should pay attention to changes in ETS, notify customers and relevant departments in a timely manner, and avoid delays.