Time in Surabaya vs Mumbai
Surabaya keeps WIB (UTC+7) and Mumbai keeps IST (UTC+5:30) today. Mumbai is 1½ 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: 09:00–17:00 in Mumbai (10:00–18:00 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 |
| Mumbai—— | 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 Mumbai
Best hours to call
10:00 in Surabaya
Inside working hours on both sides
09:00 in Mumbai
11:00 in Surabaya
Inside working hours on both sides
10:00 in Mumbai
12:00 in Surabaya
Inside working hours on both sides
11:00 in Mumbai
13:00 in Surabaya
Inside working hours on both sides
12:00 in Mumbai
Where daylight saving pulls them apart
Neither Surabaya nor Mumbai changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Mumbai of Surabaya?
Mumbai is 1½ 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 Mumbai?
Any hour in 10:00–18:00 Surabaya time is inside working hours in both cities.
Do Surabaya and Mumbai change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.