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Indonesia's Three Time Zones

WIB, WITA, WIT (UTC+7 to +9) — Jakarta vs Bali and scheduling across the archipelago.

Indonesia uses **three standard zones**: WIB (west), WITA (central), WIT (east) — IANA Asia/Jakarta, Asia/Makassar, Asia/Jayapura. No nationwide DST. One of the widest east–west spans in a single country.

The three zones

  • WIB / Asia/Jakarta — Jakarta, Surabaya (UTC+7)
  • WITA / Asia/Makassar — Bali, Makassar (UTC+8)
  • WIT / Asia/Jayapura — Papua (UTC+9)
  • Jakarta vs Bali: always 1 hour apart
  • Bali vs Beijing: both UTC+8

Common mistakes

  • "Indonesia time" is ambiguous — name a city or WIB/WITA/WIT
  • Flights use local time at each airport
  • Vs Singapore: Jakarta 1 hour behind; Bali matches Singapore
  • Use Convert with Asia/Jakarta etc. in invites

See Southeast Asia Time Zones, Australia Time Zones Guide; What Is the IANA Time Zone Database for IDs.