Post Office – Peterhead, Mintlaw – Opening Hours & Branch Details Post Office sits on South Street, a 8.12 mile distance west from the centre of Peterhead (not far from Mintlaw Academy and Mintlaw Primary School). This branch is fittingly situated to serve patrons from the districts of Longside, Old Deer, Fetterangus, Stuartfield, Mintlaw and Rora. Today (Friday), its business hours are 6:00 am to 10:00 pm. Refer to this page for the specifics on Post Office Peterhead, Mintlaw, including the working times, branch address details, product ranges and further information.