Post Office – Penzance, St Just – Opening Hours & Branch Details You’ll find Post Office situated at a prime place at 18 Bank Square, about a 6.34 mile distance west from the centre of Penzance (not far from St Just Cemetery and St Just). The branch is an outstanding addition to the local businesses of Porth Nanven, Trewellard, Kenidjack Valley, Cot Valley, Bosavern, St. Just, Labour-In-Vain and Priests Cove (Por’ Ust). Doors are open today (Friday) from 7:00 am to 6:00 pm, for those who’d like to stop by. This page will provide you with all the information you need on Post Office Penzance, St Just, including the business hours, location description, direct telephone and other relevant info.