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Time Difference: Hong Kong to Tehran

🇨🇳Hong KongUTC+8
vs
🇮🇷TehranUTC+3:30
🇨🇳
Hong Kong, China
Tue, Jul 21
🇮🇷
Tehran, Iran
Tue, Jul 21

Click a time to convert

Time Difference
4 hours 30 minutes
Tehran is 4 hours 30 minutes behind Hong Kong
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🇨🇳
Hong Kong
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🇮🇷
Tehran
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Hong Kong vs Tehran timezone guide

Hong Kong (China) uses the Asia/Hong_Kong timezone at UTC+8, while Tehran (Iran) uses Asia/Tehran at UTC+3:30. This means Tehran is 4 hours 30 minutes behind Hong Kong (based on standard offsets — the live difference above accounts for daylight saving time).

Best meeting times between Hong Kong and Tehran

Standard 9-to-5 working hours overlap by 3.5 hours per day. The shared window is 1:30pm–5pm in Hong Kong, which is 9am–12:30pm in Tehran. Schedule recurring meetings inside that window and both teams stay inside standard working hours.

Hour-by-hour planner

Hong KongTehranStatus
6am1:30amHong Kong early, Tehran asleep
7am2:30amHong Kong early, Tehran asleep
8am3:30amHong Kong early, Tehran asleep
9am4:30amHong Kong working hours, Tehran asleep
10am5:30amHong Kong working hours, Tehran asleep
11am6:30amOne side outside 9-to-5 but still awake
12pm7:30amOne side outside 9-to-5 but still awake
1pm8:30amOne side outside 9-to-5 but still awake
2pm9:30amBoth at work — ideal meeting time
3pm10:30amBoth at work — ideal meeting time
4pm11:30amBoth at work — ideal meeting time
5pm12:30pmOne side outside 9-to-5 but still awake
6pm1:30pmOne side outside 9-to-5 but still awake
7pm2:30pmOne side outside 9-to-5 but still awake
8pm3:30pmOne side outside 9-to-5 but still awake
9pm4:30pmOne side outside 9-to-5 but still awake
10pm5:30pmHong Kong late evening, Tehran evening

Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.

Daylight saving time between Hong Kong and Tehran

Neither Hong Kong nor Tehran observes daylight saving time. The time difference between them stays at 4h 30m ahead all year — recurring meetings only need to be scheduled once.

Distance between Hong Kong and Tehran

Great-circle distance
6,180 km
Direct flight time
~8h 16m

Hong Kong and Tehran are 6,180 km apart along the great-circle route. A direct flight takes roughly ~8h 16m, depending on aircraft type, winds, and routing.

More comparisons

Hong Kong to New YorkHong Kong to LondonHong Kong to TokyoHong Kong to SydneyTehran to New YorkTehran to LondonTehran to TokyoTehran to Sydney

Frequently asked questions

What is the time difference between Hong Kong and Tehran?
The current time difference is 4 hours 30 minutes. Hong Kong is currently 4 hours 30 minutes ahead of Tehran.
Is Hong Kong ahead of Tehran?
Yes. Hong Kong is currently 4 hours 30 minutes ahead of Tehran.
What time is it in Tehran when it's 9 AM in Hong Kong?
When it's 9 AM in Hong Kong, it's 4:30am in Tehran.
When is the best time to schedule a meeting between Hong Kong and Tehran?
The best window is 1:30pm–5pm in Hong Kong, which is 9am–12:30pm in Tehran. That's 3.5 hours where both teams are inside standard 9-to-5 working hours.
Do Hong Kong and Tehran observe daylight saving time?
Neither Hong Kong nor Tehran observes daylight saving time. The difference between them stays constant year-round.
How far apart are Hong Kong and Tehran?
Hong Kong and Tehran are 6,180 km apart along the great-circle route. A direct flight takes roughly 8 hours 16 minutes.