Post Office – Dumfries, St Michael Street – Opening Hours & Branch Details You can visit Post Office at 54 Street Michaels Street, approximately a 0.47 mile driving distance south from the centre of Dumfries (nearby Nithbank). The branch is located in a convenient district that essentially serves the people of Maxwelltown, Broomlands, Kingholm Quay, Noblehill, Dumfries Town Centre, Georgetown, Cargenbridge and Lochside. Doors are open today (Friday) from 7:00 am until 5:30 pm, for those who’d like to stop by. Here you’ll find the opening hours, address or telephone number for Post Office Dumfries, St Michael Street.