Post Office – Dungannon, 47 Main Street – Opening Hours & Branch Details Post Office lies at 47 Main Street, about 2.41 miles north-west of the centre of Dungannon (not far from Dungannon Golf Club). This branch serves the customers of Tullyleek, Aghareany, Tullydraw, Reloagh, Tullynure, Carland, Mullygruen and Annaghbeg. If you would like to drop by today (Friday), its open hours are 9:00 am until 5:30 pm. Please see the various sections on this page for specifics on Post Office Dungannon, 47 Main Street, including the hours of business, branch address details, product ranges and additional information about the branch.