Post Office – Penzance, Newlyn – Opening Hours & Branch Details Post Office lies at 7 Jack Lane, about a 1.01 mile drive south-west of the centre of Penzance (by Newlyn Bridge). The branch provides service primarily to the locales of Lower Drift, Wherrytown, Paul, Penzance Town Centre, Tredavoe, Heamoor, Newlyn and Treneere. Its working hours are from 7:30 am – 7:30 pm today (Friday). Read the information on this page for Post Office Penzance, Newlyn, including the opening times, location info, phone number and more info.