When should the ship's watch be set?

The ship's watch should be set before entering a port to ensure that the vessel is adequately prepared for the various navigational and safety challenges that can arise while maneuvering in confined or busy waters. Setting the watch prior to entering port allows the crew to assess the conditions, implement safety protocols, and ensure that all necessary personnel are in place. This proactive measure enhances the safety of the ship and its crew while also facilitating smooth communication and coordination during the entry process.

In contrast, setting the watch under the other circumstances would not provide the same level of preparedness or focus needed when navigating ports, which often require heightened attention to detail.