USC – Merthyr Tydfil – Opening Hours & Store Details USC is easily accessible on Swansea Rd, 0.45 miles west from the centre of Merthyr Tydfil (not far from Cyfarthfa Retail Park Bus Stop). The store is convenient for the people of Penybryn, Heolgerrig, Thomas Town, Gellideg, Merthyr Tydfil Town Centre, Galon Uchaf, Twynyrodyn and Cefn-coed-y-cymmer. If you plan to swing by today (Friday), its hours of business are from 9:30 am until 8:00 pm. Please see this page for more information regarding USC Merthyr Tydfil, including the hours of operation, place of business address or contact number.