Time Capsule (, ) is a time capsule that symbolizes the Portuguese government's witnessing and acknowledgement of China's promise to maintain Macau's level of autonomy for fifty years after the transfer of sovereignty. The Time Capsule was closed and covered on 18 December 1999 and it is scheduled to be opened in 2049. Currently, the Time Capsule is located in the Praça do Centro Cultural de Macau, which was the venue for the transference of sovereignty ceremony.