Post Office – Montgomery, Chirbury – Opening Hours & Branch Details Visit your local Post Office branch on Chirbury, about a 2.65 mile drive north-east of the centre of Montgomery (by St Michael’s Churchyard and Chirbury Post Office). The branch is located in a convenient locale that mainly serves the people of Heightley, Chirbury, King’s Orchard, Marrington, Blackford, Lower Lane, Whittery and Dudston. Today’s (Friday) hours of opening are 9:00 am – 1:00 pm. Refer to this page for the specifics on Post Office Montgomery, Chirbury, including the open hours, map, phone number and other information.