Jakarta MRT, a rapid transit system in Jakarta, began operation.

The Jakarta Mass Rapid Transit or Jakarta MRT is a rapid transit system in Jakarta, the capital city of Indonesia.

Rapid transit or mass rapid transit (MRT) or heavy rail, commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas. A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway, tube, metro or underground. They are sometimes grade-separated on elevated railways, in which case some are referred to as el trains – short for "elevated" – or skytrains. Rapid transit systems are usually electric railways that, unlike buses or trams, operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles.

Jakarta, officially the Special Capital Region of Jakarta and formerly known as Batavia until 1949, is the capital and largest city of Indonesia and an autonomous region at the provincial level. Lying on the northwest coast of Java, the world's most populous island, Jakarta is the largest metropole in Southeast Asia and serves as the diplomatic capital of ASEAN. The Special Region has a status equivalent to that of a province and is bordered by the province of West Java to the south and east and Banten to the west. Its coastline faces the Java Sea to the north, and it shares a maritime border with Lampung to the west. Jakarta's metropolitan area is ASEAN's second largest economy after Singapore. In 2023, the city's GDP PPP was estimated at US$724.010 billion.

March 24 is the 83rd day of the year in the Gregorian calendar; 282 days remain until the end of the year.