Time in Mumbai vs Ulsan
Mumbai keeps IST (UTC+5:30) and Ulsan keeps KST (UTC+9) today. Ulsan is 3½ hours ahead of Mumbai; 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: 13:00–18:00 in Ulsan (09:00–14:00 your time).
| City | 00:00 in Mumbai | 01:00 in Mumbai | 02:00 in Mumbai | 03:00 in Mumbai | 04:00 in Mumbai | 05:00 in Mumbai | 06:00 in Mumbai | 07:00 in Mumbai | 08:00 in Mumbai | 09:00 in Mumbai | 10:00 in Mumbai | 11:00 in Mumbai | 12:00 in Mumbai | 13:00 in Mumbai | 14:00 in Mumbai | 15:00 in Mumbai | 16:00 in Mumbai | 17:00 in Mumbai | 18:00 in Mumbai | 19:00 in Mumbai | 20:00 in Mumbai | 21:00 in Mumbai | 22:00 in Mumbai | 23:00 in Mumbai |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Ulsan—— | 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 Mumbai and Ulsan
Best hours to call
09:00 in Mumbai
Inside working hours on both sides
13:00 in Ulsan
10:00 in Mumbai
Inside working hours on both sides
14:00 in Ulsan
11:00 in Mumbai
Inside working hours on both sides
15:00 in Ulsan
12:00 in Mumbai
Inside working hours on both sides
16:00 in Ulsan
Where daylight saving pulls them apart
Neither Mumbai nor Ulsan changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Ulsan of Mumbai?
Ulsan is 3½ hours ahead of Mumbai right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Mumbai and Ulsan?
Any hour in 09:00–14:00 Mumbai time is inside working hours in both cities.
Do Mumbai and Ulsan change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.