The Independence Day of Indonesia (In Indonesian formally known as Hari Ulang Tahun Kemerdekaan Republik Indonesia shortened "HUT RI", or simply Hari Kemerdekaan, and colloquially referred by the people as Tujuhbelasan, meaning "the Seventeenth") is a national holiday in Indonesia commemorating the anniversary of Indonesia's Proclamation of Independence on the 17 of August 1945. It was made a national holiday by government decree in 1946.