Post Office – Llandeilo, Cwmdu SAS – Opening Hours & Branch Details Post Office is positioned on Cwmdu Inn And Stores, approximately 4.78 miles north from the centre of Llandeilo (nearby Providence Baptist Chapel). The branch is fittingly located to serve patrons from the districts of Maesycrugiau, Talley, Llansadwrn, Llanwrda, Capel Isaac, Salem, Abergorlech and Cwm-Du. Today’s (Friday) operating hours are 9:30 am to 1:30 pm. This page will give you all the information you need on Post Office Llandeilo, Cwmdu SAS, including the branch hours, local directions, customer rating and other relevant info.