Time in Tehran vs Hong Kong
Tehran keeps UTC+3:30 (UTC+3:30) and Hong Kong keeps HKT (UTC+8) today. Hong Kong is 4½ hours ahead of Tehran; 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: 14:00–18:00 in Hong Kong (09:00–13:00 your time).
| City | 00:00 in Tehran | 01:00 in Tehran | 02:00 in Tehran | 03:00 in Tehran | 04:00 in Tehran | 05:00 in Tehran | 06:00 in Tehran | 07:00 in Tehran | 08:00 in Tehran | 09:00 in Tehran | 10:00 in Tehran | 11:00 in Tehran | 12:00 in Tehran | 13:00 in Tehran | 14:00 in Tehran | 15:00 in Tehran | 16:00 in Tehran | 17:00 in Tehran | 18:00 in Tehran | 19:00 in Tehran | 20:00 in Tehran | 21:00 in Tehran | 22:00 in Tehran | 23:00 in Tehran |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tehran—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Hong Kong—— | 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 Tehran and Hong Kong
Best hours to call
09:00 in Tehran
Inside working hours on both sides
14:00 in Hong Kong
10:00 in Tehran
Inside working hours on both sides
15:00 in Hong Kong
11:00 in Tehran
Inside working hours on both sides
16:00 in Hong Kong
12:00 in Tehran
Inside working hours on both sides
17:00 in Hong Kong
Where daylight saving pulls them apart
Neither Tehran nor Hong Kong changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Hong Kong of Tehran?
Hong Kong is 4½ hours ahead of Tehran right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Tehran and Hong Kong?
Any hour in 09:00–13:00 Tehran time is inside working hours in both cities.
Do Tehran and Hong Kong change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.