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East Java, Indonesia

East Java observes Western Indonesia Time, matching Jakarta and the rest of Java. Surabaya, Malang, Kediri, and communities as far east as Banyuwangi share one clock, although sunrise occurs progressively earlier toward the province’s eastern end.

Surabaya, Indonesia

Saturday, 5 September 2026

UTC+7 · Asia/Jakarta

Time and sun data for Surabaya — the largest city of East Java

The sun in Surabaya

Sunrise 5:29 AM Solar noon 11:29 AM Sunset 5:29 PM Daylight 12 h 00 min Night 12 h 00 min Civil twilight 5:08 AM – 5:50 PM

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Current time in East Java, Indonesia

East Java uses Western Indonesia Time, abbreviated WIB, at UTC+7. The province does not observe daylight saving time, so its offset remains unchanged through the year. The time is identical to Jakarta, Central Java, and Yogyakarta. Bali, immediately across the Bali Strait from eastern Java, uses WITA and is one hour ahead. Travellers crossing by air or ferry should account for that boundary.

For international scheduling, use East Java’s fixed UTC+7 offset and check the other location’s current rule. A recurring meeting can shift by an hour for an overseas participant even though clocks in East Java never move.

The short crossing to Bali comes with a free hour on the clock, though not an extra hour in the day.

Time in Surabaya and East Java’s other cities

Surabaya is the provincial capital and a major Indonesian city. East Java also contains numerous independent cities and extensive regencies. Every one of them uses WIB. Surabaya, the capital and principal metropolitan centre.

Malang, a major inland city in the province’s south-central area. Kediri, an important city in the Brantas River region. Madiun, a city in western East Java. Probolinggo, a city on the province’s northern coast.

Banyuwangi is a significant eastern urban centre and the administrative seat of its regency. Its proximity to Bali can create confusion in travel planning: Banyuwangi remains on WIB, while destinations across the strait use WITA.

Sunrise across a long east–west province

East Java extends far enough east and west for location to matter in sunrise searches. Banyuwangi generally reaches astronomical sunrise before cities farther west on the same date. Seasonal movement changes the clock time as well.

Mountains and volcanoes strongly influence the visible horizon in many parts of the province. A calculated sunrise may occur while the solar disc remains concealed behind high ground. On an open coast, the observed event may more closely match the standard calculation.

Choose the exact city, beach, mountain, or island location. Verify the local date and ensure the time is shown in WIB. Check dawn separately if preparing for activity before sunrise. Include access time and review weather or volcanic-area restrictions.

Sunrise tables provide astronomical timing rather than a guarantee of clear skies or safe access. Current conditions and official local guidance remain essential for mountain routes, coastal trips, and protected areas.

Questions and answers

Is East Java in the same time zone as Jakarta?
Yes. Both use Western Indonesia Time at UTC+7.
Is Banyuwangi on Bali time?
No. Banyuwangi uses WIB; Bali, across the strait, uses WITA and is one hour ahead.
Does Surabaya observe daylight saving time?
No. Surabaya retains the same UTC offset all year.
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