The Lyttelton Timeball Station was erected in 1876 and started signalling Greenwich Mean Time to ships in the harbour that year. It was one of the world's five working timeball stations until it was destroyed by the June 2011 Christchurch earthquake. The castle-like building was located high on a ridge above the port with extensive views over the harbour. The tower, but not the rest of the building, has been faithfully reconstructed and was once again in working order at the end of 2018.