Western Indonesia (WIB)
Jakarta operates on Western Indonesia (WIB). This time zone does not observe Daylight Saving Time.
Time Zone: Western Indonesia Time (WIB) — Standard Offset: UTC+7 (WIB) — DST: Not observed
Country: Indonesia
This city does not observe Daylight Saving Time. The UTC offset remains constant year-round, which simplifies international scheduling.
Jakarta operates on WIB (UTC+7), the same as Bangkok. Indonesia does not observe DST. As the capital of Southeast Asia's largest economy and the world's fourth most populous country, Jakarta is a major business hub. Indonesia spans three time zones — WIB (UTC+7) in the west, WITA (UTC+8) in the center, and WIT (UTC+9) in the east — but Jakarta and Java Island (home to 60% of Indonesia's population) all use WIB.
The Indonesia Stock Exchange (IDX) trades from 9:00 AM to 4:00 PM WIB and has been one of the fastest-growing exchanges in Southeast Asia. Jakarta's banking sector and the country's rapidly growing digital economy (GoTo, Tokopedia, Traveloka) operate on WIB. Indonesia's young, large population makes it a priority market for global tech companies, all of whom must coordinate with WIB schedules.
Jakarta's UTC+7 offset aligns perfectly with Bangkok and Hanoi, and is just 1 hour behind Singapore, Kuala Lumpur, and Hong Kong. As the headquarters of the ASEAN Secretariat, Jakarta plays a central role in Southeast Asian diplomatic and economic coordination. The narrow time zone spread across ASEAN nations (UTC+7 to UTC+8 for most) facilitates regional business.
Jakarta to London is 7 hours (6 during BST) — afternoon Jakarta overlaps with morning London. Jakarta to New York is 12 hours (11 during EDT) — similar to the Bangkok-US scheduling challenge. Early morning Jakarta catches late evening US, or late afternoon Jakarta reaches early morning US. Indonesia's growing importance in global supply chains (nickel, palm oil, manufacturing) means WIB is increasingly tracked by commodity traders and multinational companies.