Observatory log
Hong Kong and Hamadan, compared
- 01Difference now
Hamadan is 4 hours 30 minutes behind Hong Kong.
Hong Kong: HKT (UTC+8) · Hamadan: UTC+3:30 (UTC+3:30)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027−4 h 30 min
Difference of Hamadan from Hong Kong. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Thu: 13:30–17:00 in Hong Kong = 09:00–12:30 in Hamadan · 3 h 30 min
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
13:30–17:00 in Hong Kong = 09:00–12:30 in Hamadan
Inside both working days (Mon–Thu).
- 05Weekend
Hong Kong: Saturday and Sunday
Hamadan: Friday
24 hours
A day in Hong Kong, in Hamadan
| Hong Kong | Hamadan | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 19:30Yesterday | |
| 01:00 | 20:30Yesterday | |
| 02:00 | 21:30Yesterday | |
| 03:00 | 22:30Yesterday | |
| 04:00 | 23:30Yesterday | |
| 05:00 | 00:30 | |
| 06:00 | 01:30 | |
| 07:00 | 02:30 | |
| 08:00 | 03:30 | |
| 09:00 | 04:30 | |
| 10:00 | 05:30 | |
| 11:00 | 06:30 | |
| 12:00 | 07:30 | |
| 13:00 | 08:30 | |
| 14:00 | 09:30 | |
| 15:00 | 10:30 | |
| 16:00 | 11:30 | |
| 17:00 | 12:30 | |
| 18:00 | 13:30 | |
| 19:00 | 14:30 | |
| 20:00 | 15:30 | |
| 21:00 | 16:30 | |
| 22:00 | 17:30 | |
| 23:00 | 18:30 |
Working hoursEarly or eveningNightWeekend
Questions
Asked about Hong Kong and Hamadan
What is the time difference between Hong Kong and Hamadan?
Hamadan is 4 hours 30 minutes behind Hong Kong. The difference stays the same all year.
What is the best time for a call between Hong Kong and Hamadan?
Inside both working days: Mon–Thu: 13:30–17:00 in Hong Kong = 09:00–12:30 in Hamadan · 3 h 30 min.
When does the time difference between Hong Kong and Hamadan change?
It does not change in the next 12 months: Hong Kong and Hamadan either keep the same time all year or change their clocks on the same dates.