Post Office – Dumfries – Opening Hours & Branch Details Post Office sits at 73 – 74 Whitesands, approximately a 0.37 mile distance south-west of the centre of Dumfries (close to Irish Street). The branch is convenient for the people of Maxwelltown, Broomlands, Cargenbridge, Dalscone, Georgetown, Lochside, Noblehill and Dumfries Town Centre. It’s open from 8:00 am – 9:00 pm today (Friday). Read the information on this page for Post Office Dumfries, including the operating hours, navigation, telephone details and more.