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