Post Office – Kirkcudbright, Twynholm – Opening Hours & Branch Details You will find Post Office easily accessible at 43 Main Street, approximately a 2.43 mile driving distance north-west of the centre of Kirkcudbright (close to Village). This branch provides service principally to the locales of Tongland, Kirkandrews, Twynholm, Barluka, Standingstone and Barwhinnock. Its working hours for today (Friday) are from 7:30 am – 5:30 pm. This page will supply you with all the information you need about Post Office Kirkcudbright, Twynholm, including the opening times, location details, direct phone and additional details.