Koh Samui to Hong Kong: time difference
Hong Kong is 1 h ahead of Koh Samui. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇭🇰 Hong Kong, Hong Kong (China)
07
- Hong Kong Standard Time
- UTC+8
- Daytime
☀️ 06:18 · 🌙 18:04 · 11 h 46 min
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Koh Samui 09:28 9:28 AM Hong Kong 10:28 10:28 AM You –:–
09:28 9:28 AM
Indochina Time · UTC+7
☀️ 06:09 · 🌙 18:07
10:28 10:28 AM
Hong Kong Standard Time · UTC+8
☀️ 06:18 · 🌙 18:04
·
+1 h
Hong Kong is 1 h ahead of Koh Samui.
When you, Koh Samui 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
🇹🇭 Koh Samui
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
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Koh Samui | 🇭🇰 Hong Kong |
|---|---|---|
| Local time | 09:28 | 10:28 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Indochina Time | Hong Kong Standard Time |
| UTC offset | UTC+7 | UTC+8 |
| Offset from Koh Samui | — | +1 h |
| IANA zone | Asia/Bangkok | Asia/Hong Kong |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:09 | 06:18 |
| Sunset | 18:07 | 18:04 |
| Daylight | 11 h 58 min | 11 h 46 min |
| People on this clock | 62,110 | 1,367,900 |
Compare Koh Samui with another city
More comparisons with Koh Samui: the time zones next to it and the far side of the clock.
Big time differences
Koh Samui and Hong Kong: common questions
How many hours ahead of Koh Samui is Hong Kong?
The clocks in Hong Kong are 1 hour ahead of those in Koh Samui (UTC+8 and UTC+7).
If it is 9:00 AM in Koh Samui, what time is it in Hong Kong?
At 9:00 AM in Koh Samui, clocks in Hong Kong show 10:00 AM.
What time is it in Hong Kong at the end of the working day in Koh Samui?
The working day in Koh Samui ends at 6:00 PM; in Hong Kong it is 7:00 PM at that moment.
When do working hours in Koh Samui and in Hong Kong overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Koh Samui, which is 10:00 AM to 6:00 PM in Hong Kong.
From what time in Koh Samui is it tomorrow in Hong Kong?
Once it is 11:00 PM in Koh Samui, the date in Hong Kong has already changed. Until 1:00 AM in Hong Kong, it is still the previous day in Koh Samui.
Is the time difference between Koh Samui and Hong Kong the same all year?
Yes. Neither Koh Samui nor Hong Kong switches to summer time, so the gap is always 1 hour.
