Indonesia guide › Indonesia at a glance
Where is Indonesia and what time zone is it in?
Indonesia sits in Southeast Asia, straddling the equator between the Indian and Pacific oceans: a long string of islands running from the tip of Malaysia almost to northern Australia. It spans three time zones (UTC+7 to UTC+9) with no daylight saving, so Bali is on the same time as Perth, 2 hours behind Sydney (3 in the Australian summer) and 7 to 8 hours ahead of London.
To get a sense of scale: it stretches more than 5,000 km (3,100 miles) from west to east, wider than mainland Australia, and its land area is nearly eight times the size of the UK. Indonesia shares land borders with Malaysia (on Borneo), Papua New Guinea and Timor-Leste; Singapore, the Philippines and Australia are its neighbours across the water.
More than 280 million people live here, making it the world's fourth most populous country and the largest Muslim-majority nation, with sizeable Christian, Hindu (mostly in Bali) and Buddhist minorities. The capital is Jakarta, on Java. A brand-new city, Nusantara, is being built on Borneo and is due to become the 'political capital' around 2028; for travellers, nothing changes. As for the scenery: well over a hundred active volcanoes, terraced rice fields, rainforest on Sumatra and Borneo, and some of the richest coral reefs on the planet.
The three time zones:
- WIB (Western Indonesia Time, UTC+7): Sumatra, Java, West and Central Kalimantan. One hour behind Perth; 3 hours behind Sydney (4 in summer); 7 hours ahead of London in winter, 6 in summer.
- WITA (Central Indonesia Time, UTC+8): Bali, Lombok, Flores, Sumba, Sulawesi, South, East and North Kalimantan. Same as Perth; 2 hours behind Sydney (3 in summer); 8 hours ahead of London in winter, 7 in summer.
- WIT (Eastern Indonesia Time, UTC+9): Maluku and Papua. One hour ahead of Perth, one behind Sydney (2 in summer); 9 hours ahead of London in winter, 8 in summer.
From the US, add 12 to 16 hours depending on your coast and the season: when it's 7pm in New York, it's already the next morning in Bali. The classic trap is the hop between Java and Bali: the ferry crossing takes about an hour, but your watch jumps forward two. Domestic flights work the same way, with times always shown in local time at each end, so a two-hour Jakarta to Bali flight looks like three. For the bigger picture, see how many islands Indonesia has and how to get there.
Tip: let your phone set the time automatically and check the time zone on every ticket and tour booking: a Mount Bromo sunrise runs on Java time, even if you spent the night before in Bali.
Information checked in November 2026; confirm before you travel.