DetailsAs part of the 1988 Bi-Centenary celebrations within Hornsby Shire a time capsule was deposited in a wall along Yarrara Road, Pennant Hills. It is due to be opened on 7 May 2088.
Another time capsule is located at Greenway Park, Cherrybrook and is scheduled to be opened in 2041.
In 2019 a time capsule was buried at the Berowra Public School
A Time Capsule was also laid at the Poplars, Norfolk Road, North Epping in October 1993. The contents included the hospital song, menus, photographs, hospital brochures, a newspaper of the day, staff badges, operating theatre instrument and a bandaged bear.
The pupils at Hornsby North Public School deposited a capsule at the school in November 2016.