Capital: Jakarta · Home to the world's largest Muslim population of any country, spread across three time zones from Sumatra to Papua.
Indonesia is the only country on this list that spans three time zones, so unlike a single-time-zone country, Fajr in Banda Aceh can fall nearly two hours later in clock time than Fajr in Jayapura on the same calendar day. Western Indonesia — Sumatra, Java, and West/Central Kalimantan — runs on WIB (UTC+7). Central Indonesia — Bali, South/East Kalimantan, and Sulawesi — runs on WITA (UTC+8). Papua and Maluku run on WIT (UTC+9).
Most Indonesian mosques and the government's own prayer schedules follow calculations published by Kemenag, the Ministry of Religious Affairs, through its Bimas Islam directorate — the convention this page and every Indonesian city page on IslamiCompiler uses. Kemenag's published schedules are also the basis most Indonesian Ramadan calendars use for Imsak, Sehri and Iftar timing.
City-level pages with live, minute-by-minute Salah times are being added gradually. In the meantime, get today's exact times for any of these — or any other Indonesian city — with the tool linked below.
Mostly because Indonesia spans three official time zones (WIB, WITA, WIT) across roughly 5,100 km east to west — more than the distance from London to Baghdad. A city's exact longitude within its time zone adds a smaller further shift on top of that.
Yes — Kemenag's Bimas Islam directorate publishes one national methodology used across the country; what changes city to city is each location's own latitude, longitude and time zone, not the underlying method.
Imsak is conventionally set a short interval (commonly around 10 minutes) before that day's calculated Fajr time, and Iftar begins at Maghrib — both derived from the same Kemenag calculation this page uses, for each city's own coordinates.