Time in Surabaya, Indonesia
Tuesday, October 13, 2026
Surabaya does not change its clocks
A fixed offset, all year round
Surabaya stays on Western Indonesia Time at UTC+07:00 every day of the year. There is no spring-forward or fall-back here, which puts it with the majority: most of the world's time zones do not observe daylight saving.
That sounds like it makes scheduling simpler, and locally it does — but it introduces a different trap for anyone working with Surabaya from a country that does change clocks. The offset between you and Surabaya is not constant: it changes when your clocks move, even though nothing changed here. A recurring call that has run at the same local time for months will shift by an hour, from your side, without anyone editing the invite.
When the gap to Surabaya changes
Dates in the next year where the difference shifts, by counterpart city
The difference between two cities is not a constant. It changes whenever either side moves its clocks — and because regions switch on different dates, there are short windows each year when the usual gap is wrong. These are the dates that matter for Surabaya:
London (United Kingdom)
- From 25 October 2026: Surabaya is 7 hours ahead of London
- From 28 March 2027: Surabaya is 6 hours ahead of London
Frankfurt (Germany)
- From 25 October 2026: Surabaya is 6 hours ahead of Frankfurt
- From 28 March 2027: Surabaya is 5 hours ahead of Frankfurt
Sydney (Australia)
- From 4 April 2027: Surabaya is 3 hours behind Sydney
- From 3 October 2027: Surabaya is 4 hours behind Sydney
Daylight and the sun over Surabaya
Surabaya sits at -7.25°, 112.75°
Longest day
12h 33m of daylight
Shortest day
11h 42m of daylight
Yearly swing
0h 51m between them
Day length here barely changes: 12h 33m at its longest and 11h 42m at its shortest, a difference of only 51 minutes across the whole year. Surabaya is close enough to the equator that the seasons barely register in daylight terms, which is part of why daylight saving would serve no purpose at this latitude.
Clock time versus solar time
When the clock in Surabaya reads 12:00, the sun is already past overhead — the civil clock runs 31 minutes behind mean solar time here.
Quick Time Comparisons
See how Surabaya time compares to other major cities right now
Time Zone Offset from Surabaya
Best Times to Contact Surabaya
Optimal calling and meeting hours
Business Hours
Typically 9:00 AM - 5:00 PM local time
Best for professional calls, meetings, and business inquiries
Personal Calls
Evenings 7:00 PM - 10:00 PM local time
Ideal for catching up with family and friends
Pro Tip: Use the meeting coordinator tool above to find overlapping working hours between your location and Surabaya. This makes scheduling international meetings much easier!
Cultural Business Context
Surabaya, Indonesia • 14:15 local time
Great Time!
Good time for business communication
Quick Stats
Business Hours Timeline
Best Times to Contact
Times to Avoid
Business hours: 08:00 - 17:00 | Weekend: Sunday, Saturday | Lunch: 12:00 - 13:00
🌍 Cultural awareness enhances business relationships and prevents scheduling conflicts across global teams
Places related to Surabaya
Cities that share a clock, a country, or an offset
On exactly the same clock as Surabaya
These share the Asia/Jakarta zone, so they keep the same time as Surabaya year-round.
Same offset (UTC+07:00), different part of the world
These sit in other countries but keep the same standard offset as Surabaya (Western Indonesia Time). They will not necessarily change clocks on the same dates, so the match can be seasonal rather than permanent.
Meeting Time Coordinator
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Common Questions About Surabaya Time
Frequently asked questions
What time zone is Surabaya in?
Surabaya operates in the Asia/Jakarta time zone, known as Western Indonesia Time, currently UTC+07:00. This clock applies that offset directly from the IANA time zone database.
Does Surabaya observe daylight saving time?
No. Surabaya stays on Western Indonesia Time at UTC+07:00 all year and does not observe daylight saving time. Note that the difference between you and Surabaya can still change when your own clocks shift.
What's the time difference between Surabaya and my location?
The time comparison tool above shows the current time difference. You can also use our meeting coordinator to find the best times for calls across different time zones.
How accurate is this Surabaya clock?
Our clock synchronizes with your device's time and applies the official Asia/Jakarta time zone offset. It updates every second and automatically handles daylight saving time, ensuring accuracy within a second.
Can I use this for scheduling meetings in Surabaya?
Yes! This tool is perfect for scheduling. Use the meeting coordinator above to compare multiple time zones and find optimal meeting times that work for everyone in Surabaya and other locations.
Time Zone Facts About Surabaya
Interesting information about Surabaya's time
IANA identifier
Asia/Jakarta
Standard time name
Western Indonesia Time
Standard offset
UTC+07:00
Daylight saving
Not observed — the offset is fixed year-round
Region
Asia