Post Office – Llanelli, Carmel mobile service – Opening Hours & Branch Details Post Office is situated directly on Carmel Village Hall, about 11.21 miles north-east of the centre of Llanelli (nearby Carmel National Nature Reserve). This branch is situated in a convenient location to serve the people of Carmel, Blaenau, Llandybie, Pentregwenlais, Temple Bar, Maesybont and Milo. If you would like to swing by today (Friday), its hours of business are 3:15 pm – 4:00 pm. Here you will find hours of operation, local navigation and email info for Post Office Llanelli, Carmel mobile service.