National Archives Day (Hari Kearsipan Nasional) is observed in Indonesia every May 18 to commemorate the Archives Basic Provision Act of 1971, which regulates the management and preservation of public records. The day highlights the importance of the National Archives of Indonesia, which is responsible for collecting, preserving, and providing access to records of historical, legal, and administrative value. The origins of the National Archives date back to the establishment of the Landsarchief by the Dutch East Indies colonial government in 1892, aimed at preserving materials from the Dutch East India Company. Following Indonesia's independence, the archival collections were taken over by the Indonesian government, and the institution has undergone several name changes and jurisdiction shifts, ultimately becoming a non-departmental government institution in 1967. The National Archives holds a significant collection related to Indonesia's colonial period, including the world's largest archive of documents from the Dutch East India Company. This day serves to promote the importance of archival heritage and proper record management across public institutions.