Post Office – Caledon – Opening Hours & Branch Details Post Office is located in a good spot at 49 Main Street, a 0.01 mile distance south of the centre of Caledon. The branch is delighted to serve patrons within the districts of Tynan, Kilsampson, Caledon Town Centre, Enagh, Demesne, Millberry, Kilgowney and Gortmalegg. Today (Friday), its working times are from 9:00 am to 5:30 pm. On this page, you may find business times, branch address, telephone number and more information about Post Office Caledon.