City history
Jakarta evolved from the Sundanese port of Sunda Kelapa into colonial Batavia before adopting Western Indonesia Time (WIB) as the capital of independent Indonesia.
Chapter one
Indigenous name
"Coconut Harbor of Sunda"
Recorded as the primary seaport of the Hindu Sunda Kingdom, the settlement served as a major regional maritime trade center prior to European expansion.
Coconut Harbor of Sunda
Served as the principal port for the Sunda Kingdom, trading pepper and regional goods with Asian and European merchants.
Victorious deed or complete victory
Renamed by Prince Fatahillah of the Demak Sultanate after expelling Portuguese forces on June 22, 1527.
Derived from the Germanic Batavi tribe
Established by the Dutch East India Company (VOC) under Jan Pieterszoon Coen as the headquarters of the Dutch East Indies.
Special City of Jakarta
Designated as a special municipal territory during World War II under Japanese military administration.
Victorious deed
Officially adopted following Indonesia's declaration of independence in 1945 and designated as the national capital.
Chapter two
Java standardized local time at UTC+07:20, departing from individual local solar mean time standardizations across colonial ports.
The Netherlands East Indies introduced unified regional time zones across the archipelago, establishing Java Time at UTC+07:30.
During World War II occupation, Japanese military administration shifted Java to UTC+09:00 to align administration directly with Tokyo.
Following the Japanese surrender, Java reverted from Japanese occupation time back to the UTC+07:30 standard offset.
Presidential Decree 243/1963 established Western Indonesia Time at UTC+07:00 on January 1, 1964, fixing Jakarta's modern offset.
Chapter three
Prince Fatahillah captured Sunda Kelapa on June 22, 1527, renaming it Jayakarta. The date is commemorated annually as Jakarta's birthday.
The Dutch completed the Batavia City Hall (Stadhuis), now the Jakarta History Museum, featuring a central bell and clock tower.
Opening of the Art Deco Stasiun Jakarta Kota railway station, incorporating central station clocks to coordinate regional rail travel across Java.
Construction began on the 132-meter National Monument in Merdeka Square, creating the central geographic and civic landmark of modern Jakarta.
Jakarta launched its first Mass Rapid Transit system, using automated central time synchronization across underground and elevated stations.