Koriyama to Hong Kong: time difference
Hong Kong is 1 h behind Koriyama. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇭🇰 Hong Kong, Hong Kong (China)
21
- Hong Kong Standard Time
- UTC+8
- Night
☀️ 06:22 · 🌙 17:56 · 11 h 34 min
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Koriyama 22:21 10:21 PM Hong Kong 21:21 9:21 PM You –:–
22:21 10:21 PM
Japan Standard Time · UTC+9
☀️ 05:51 · 🌙 16:57
21:21 9:21 PM
Hong Kong Standard Time · UTC+8
☀️ 06:22 · 🌙 17:56
·
−1 h
Hong Kong is 1 h behind Koriyama.
When you, Koriyama and Hong Kong are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇯🇵 Koriyama
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇭🇰 Hong Kong
23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇯🇵 Koriyama | 🇭🇰 Hong Kong |
|---|---|---|
| Local time | 22:21 | 21:21 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Japan Standard Time | Hong Kong Standard Time |
| UTC offset | UTC+9 | UTC+8 |
| Offset from Koriyama | — | −1 h |
| IANA zone | Asia/Tokyo | Asia/Hong Kong |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:51 | 06:22 |
| Sunset | 16:57 | 17:56 |
| Daylight | 11 h 6 min | 11 h 34 min |
| People on this clock | 327,692 | 1,367,900 |
Compare Koriyama with another city
More comparisons with Koriyama: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Koriyama and Hong Kong: common questions
What is the time difference between Koriyama and Hong Kong?
Hong Kong is 1 hour behind: it uses UTC+8, while Koriyama is on UTC+9.
What time is it in Hong Kong when it is 9:00 AM in Koriyama?
When it is 9:00 AM in Koriyama, it is 8:00 AM in Hong Kong.
What time is it in Hong Kong when it is 6:00 PM in Koriyama?
When it is 6:00 PM in Koriyama, it is 5:00 PM in Hong Kong.
When is a good time to call Hong Kong from Koriyama?
Between 10:00 AM and 6:00 PM in Koriyama – that is 9:00 AM to 5:00 PM in Hong Kong – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Koriyama is it still yesterday in Hong Kong?
Before 1:00 AM in Koriyama, the date in Hong Kong has not changed yet. From 11:00 PM in Hong Kong, it is already the next day in Koriyama.
Does the time gap between Koriyama and Hong Kong change during the year?
No, the clocks change neither in Koriyama nor in Hong Kong, so the gap is 1 hour all year round.
