Time in Hamhŭng vs Istanbul
Hamhŭng keeps KST (UTC+9) and Istanbul keeps UTC+3 (UTC+3) today. Istanbul is 6 hours behind Hamhŭng; 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: 09:00–12:00 in Istanbul (15:00–18:00 your time).
| City | 00:00 in Hamhŭng | 01:00 in Hamhŭng | 02:00 in Hamhŭng | 03:00 in Hamhŭng | 04:00 in Hamhŭng | 05:00 in Hamhŭng | 06:00 in Hamhŭng | 07:00 in Hamhŭng | 08:00 in Hamhŭng | 09:00 in Hamhŭng | 10:00 in Hamhŭng | 11:00 in Hamhŭng | 12:00 in Hamhŭng | 13:00 in Hamhŭng | 14:00 in Hamhŭng | 15:00 in Hamhŭng | 16:00 in Hamhŭng | 17:00 in Hamhŭng | 18:00 in Hamhŭng | 19:00 in Hamhŭng | 20:00 in Hamhŭng | 21:00 in Hamhŭng | 22:00 in Hamhŭng | 23:00 in Hamhŭng |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hamhŭng—— | 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 Hamhŭng and Istanbul
Best hours to call
15:00 in Hamhŭng
Inside working hours on both sides
09:00 in Istanbul
16:00 in Hamhŭng
Inside working hours on both sides
10:00 in Istanbul
17:00 in Hamhŭng
Inside working hours on both sides
11:00 in Istanbul
Where daylight saving pulls them apart
Neither Hamhŭng nor Istanbul changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Istanbul of Hamhŭng?
Istanbul is 6 hours behind Hamhŭng right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Hamhŭng and Istanbul?
Any hour in 15:00–18:00 Hamhŭng time is inside working hours in both cities.
Do Hamhŭng and Istanbul change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.