Jakarta operates on Western Indonesia Time (WIB), which is UTC+7 year-round. Indonesia spans three time zones — WIB in the west (Sumatra, Java, West Kalimantan), WITA in the centre (Bali, South Kalimantan), and WIT in the east (Papua) — but Jakarta and the bulk of the economy sit in WIB.
The Indonesia Stock Exchange (IDX) trades from 9:00 AM to 4:00 PM WIB, with a break from 11:30 AM to 1:30 PM. Jakarta is the economic hub of Southeast Asia's largest economy by population, with growing influence in digital services, commodities, and manufacturing.
Jakarta shares the UTC+7 offset with Bangkok, making coordination between the two ASEAN capitals seamless. The city is 1 hour behind Singapore and Hong Kong, 12 hours ahead of New York (EST), and 7 hours ahead of London (GMT). Midday in Jakarta overlaps with early European business hours.
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