Post Office – Cardigan, St Dogmaels – Opening Hours & Branch Details Post Office can be found at 1 High Street, a 0.84 mile driving distance west from the centre of Cardigan (not far from Netpool Playground). The branch is located in a convenient area that essentially serves the people of St Dogmaels, Cardigan Town Centre, New Town, Bettws Evan, Troedyraur and Llanwenog. Today (Friday), its working times are 9:00 am to 5:30 pm. Please see this page for other information regarding Post Office Cardigan, St Dogmaels, including the business times, directions or telephone info.