Time in Surabaya vs Istanbul
Surabaya keeps WIB (UTC+7) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 4 hours behind Surabaya; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 09:00–14:00 in Istanbul (13:00–18:00 your time).
| City | 00:00 in Surabaya | 01:00 in Surabaya | 02:00 in Surabaya | 03:00 in Surabaya | 04:00 in Surabaya | 05:00 in Surabaya | 06:00 in Surabaya | 07:00 in Surabaya | 08:00 in Surabaya | 09:00 in Surabaya | 10:00 in Surabaya | 11:00 in Surabaya | 12:00 in Surabaya | 13:00 in Surabaya | 14:00 in Surabaya | 15:00 in Surabaya | 16:00 in Surabaya | 17:00 in Surabaya | 18:00 in Surabaya | 19:00 in Surabaya | 20:00 in Surabaya | 21:00 in Surabaya | 22:00 in Surabaya | 23:00 in Surabaya |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Surabaya—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Istanbul—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Surabaya and Istanbul
Best hours to call
13:00 in Surabaya
Inside working hours on both sides
09:00 in Istanbul
14:00 in Surabaya
Inside working hours on both sides
10:00 in Istanbul
15:00 in Surabaya
Inside working hours on both sides
11:00 in Istanbul
16:00 in Surabaya
Inside working hours on both sides
12:00 in Istanbul
Where daylight saving pulls them apart
Neither Surabaya nor Istanbul changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Istanbul of Surabaya?
Istanbul is 4 hours behind Surabaya right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Surabaya and Istanbul?
Any hour in 13:00–18:00 Surabaya time is inside working hours in both cities.
Do Surabaya and Istanbul change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.