What timezone is Surabaya in?

Surabaya uses the IANA timezone Asia/Jakarta. The UTC offset is always UTC+7 — this timezone does not observe daylight saving time.

Does Surabaya observe daylight saving time?

No. Surabaya does not observe daylight saving time. The UTC offset remains UTC+7 all year round.

What is the current UTC offset for Surabaya?

Surabaya is currently at UTC+7.

What is the time difference between Surabaya and New York?

Surabaya is currently 11 hours ahead of New York.

What is the time difference between Surabaya and London?

Surabaya is currently 6 hours ahead of London.

Surabaya, Indonesia · UTC+7

02:14:42

Friday, April 3, 2026

W14 ↑ 05:32 ↓ 17:34 No DST

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Surabaya is Indonesia’s second-largest city and the capital of East Java, a port city and commercial center on the Madura Strait. Despite being in East Java, Surabaya uses Western Indonesia Time (UTC+7), the same timezone as Jakarta to the west, because all of Java falls within this zone.

Indonesia’s three timezone system, Western (UTC+7), Central (UTC+8), and Eastern (UTC+9), divides the archipelago’s vast extent into manageable segments. For Surabaya at roughly 112 degrees east longitude, UTC+7 means solar noon falls at around 11:30am, about half an hour early by the clock. This is a minor misalignment compared to the far western or eastern extremes of the timezone.

Surabaya is one of Southeast Asia’s largest ports and a manufacturing hub for east Java’s industrial output. The city’s naval history is significant: the Battle of Surabaya in November 1945, when Indonesian independence fighters resisted British and Dutch forces, is commemorated on November 10 as Heroes’ Day (Hari Pahlawan). Time here carries that weight.

monsoon rhythms and commercial port

At 7 degrees south, Surabaya is near the equator, with minimal daylight variation. The city’s rhythm is shaped by the monsoon seasons and the flow of commercial shipping more than by any seasonal clock.

Jakarta to the west shares the same Western Indonesia Time.

9am in Surabaya is 2am in London in winter, 3am during British Summer Time.

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Questions about time in Surabaya

What timezone is Surabaya in?: Surabaya uses the IANA timezone Asia/Jakarta. The UTC offset is always UTC+7 — this timezone does not observe daylight saving time.
Does Surabaya observe daylight saving time?: No. Surabaya does not observe daylight saving time. The UTC offset remains UTC+7 all year round.
What is the current UTC offset for Surabaya?: Surabaya is currently at UTC+7.
What is the time difference between Surabaya and New York?: Surabaya is currently 11 hours ahead of New York.
What is the time difference between Surabaya and London?: Surabaya is currently 6 hours ahead of London.
What is the time difference between Surabaya and Los Angeles?: Surabaya is currently 14 hours ahead of Los Angeles.
What is the time difference between Surabaya and Tokyo?: Surabaya is currently 2 hours behind Tokyo.
What is the IANA timezone name for Surabaya?: The IANA timezone database identifier for Surabaya is Asia/Jakarta. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'Asia/Jakarta' })`), Python (`pytz.timezone('Asia/Jakarta')`), or any IANA-compatible library.

Surabaya, Indonesia · UTC+7 ☆