Main Campus Trinity Presbyterian Church (PCA) 6098 Locust Lane Harrisburg, PA 17109-5630 Sunday School at 9:00 am, Sunday Worship at 10:15 am and 6:00 pm (717) 545-4271 Get Directions Worship Service Times are 10:15 am and usually 6:00 pm. (Check calendar). Sunday School is held at 9:00 am.