Post Office – Dungannon, Moygashel – Opening Hours & Branch Details Visit Post Office at 5 Moygashel Mills Park, a 1.63 mile driving distance south from the centre of Dungannon (nearby Dungannon Park). This branch is a handy addition to the districts of Moygashel, Coolhill, Dungannon Town Centre, Stangmore (Knox), Ballynorthland Demesne, Mullybrannon, Mullaghanagh and Gortmerron. Today (Friday), you can drop by 7:00 am to 9:00 pm. This page includes specifics on Post Office Dungannon, Moygashel, including the operating hours, place of business address and email contact.