| CITY | LOCAL TIME | Difference | Coming up |
|---|---|---|---|
| London United Kingdom | 01:00 | −6h | Becomes −7h on 25 Oct |
| Berlin Germany | 02:00 | −5h | Becomes −6h on 25 Oct |
| Dubai UAE | 04:00 | −3h | |
| Tokyo Japan | 09:00 | +2h | |
| Sydney Australia | 10:00 | +3h | Becomes +4h on 4 Oct |
| New York United States | 20:00Wed | −11h | Becomes −12h on 1 Nov |
| Los Angeles United States | 17:00Wed | −14h | Becomes −15h on 1 Nov |
Surabaya, Indonesia runs on UTC+7. This time zone stays fixed year-round at UTC+7 — daylight saving time is not observed. The time difference between Surabaya and New York is 11 hours. Standard working hours don't overlap at all with New York, so meetings need an early or late slot on one side. The time difference between Surabaya and London is 6 hours. Standard 9-to-6 working hours overlap for about 3 hours a day with London. A good time to connect: 15:00–18:00 in Surabaya lines up with 09:00–12:00 in London. The time difference between Surabaya and Tokyo is 2 hours. Standard 9-to-6 working hours overlap for about 7 hours a day with Tokyo. A good time to connect: 09:00–16:00 in Surabaya lines up with 11:00–18:00 in Tokyo. This timezone is also shared with cities such as Bangkok, Jakarta, Ho Chi Minh City. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Surabaya.
Surabaya (Indonesia) is home to roughly 2.9M people. Today brings about 12.2 hours of daylight: sunrise at 05:14, sunset at 17:23. This time zone stays fixed year-round at UTC+7 — daylight saving time is not observed. It sits in the Southern Hemisphere, about 7° south of the equator. Traffic drives on the left.
Flag
Indonesia
Capital
Jakarta
Continent
Asia
Time Zone
UTC+7 · Asia/Jakarta
Coordinates
7.25°S, 112.75°E
Currency
IDR (Rp)
Calling Code
+62
Driving Side
Left
Hemisphere
Southern
Language
Indonesian
Measurement System
Metric
Did You Know?
The Battle of Surabaya in November 1945 saw poorly armed Indonesian irregulars fight British and Indian troops for three weeks. Thousands died, the city fell, and 10 November has been Indonesia's Heroes' Day ever since.
The clock: Surabaya keeps UTC+7, Indonesia's western zone, along with Jakarta 700 km away — the country spans three offsets in total.
Surabaya lies at 112.8°E. Its time zone, UTC+7, is built around the 105°E meridian. The 7.8° gap between them means the clock runs roughly 31 minutes behind the sun: solar noon arrives at about 11:29 rather than 12:00. The zone holds UTC+7 all year — there is no daylight saving here.
The longest day of 2026 is 22 December, with 12h 33m of daylight. The shortest is 22 June, with 11h 42m. The swing between them is 51 minutes. Within a few degrees of the equator the length of the day barely moves all year.
The earliest sunrise and the latest sunset do not land on the longest day. In Surabaya the sun comes up earliest on 13 November at 05:01, while the latest sunset waits until 1 February at 17:55. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In Surabaya that civil twilight runs about 21 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.
The official timezone for Surabaya, Indonesia is Asia/Jakarta with a current UTC offset of UTC+7.
Surabaya has an estimated population of 2.9M and is located at coordinates 7.25°S, 112.75°E.
Surabaya gets 12h 33m of daylight on its longest day and 11h 42m on its shortest, averaging 12h 7m a day across the year.
Solar noon in Surabaya falls at about 11:29 on UTC+7 standard time, because the city sits 7.8° from the meridian its zone is built on.
A Battle That Named a Holiday: The Battle of Surabaya in November 1945 saw poorly armed Indonesian irregulars fight British and Indian troops for three weeks. Thousands died, the city fell, and 10 November has been Indonesia's Heroes' Day ever since.