Koh Samui to Barcelona: time difference
Barcelona is 5 h behind Koh Samui. Live clocks for both, the working hours they share, and how each one sits against your own time.
−5 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Koh Samui 09:27 9:27 AM Barcelona 04:27 4:27 AM You –:–
09:27 9:27 AM
Indochina Time · UTC+7
☀️ 06:09 · 🌙 18:07
04:27 4:27 AM
Central European Summer Time · UTC+2
☀️ 07:58 · 🌙 19:20
·
−5 h
Barcelona is 5 h behind Koh Samui.
When you, Koh Samui and Barcelona 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
🇪🇸 Barcelona
19 7 PM 20 8 PM 21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Koh Samui | 🇪🇸 Barcelona |
|---|---|---|
| Local time | 09:27 | 04:27 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Indochina Time | Central European Summer Time |
| UTC offset | UTC+7 | UTC+2 |
| Offset from Koh Samui | — | −5 h |
| IANA zone | Asia/Bangkok | Europe/Madrid |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 06:09 | 07:58 |
| Sunset | 18:07 | 19:20 |
| Daylight | 11 h 58 min | 11 h 22 min |
| People on this clock | 62,110 | 1,660,122 |
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 Barcelona: common questions
How many hours behind Koh Samui is Barcelona?
The clocks in Barcelona are 5 hours behind those in Koh Samui (UTC+2 and UTC+7).
If it is 9:00 AM in Koh Samui, what time is it in Barcelona?
At 9:00 AM in Koh Samui, clocks in Barcelona show 4:00 AM.
What time is it in Barcelona when it is 6:00 PM in Koh Samui?
When it is 6:00 PM in Koh Samui, it is 1:00 PM in Barcelona.
Is there a time when both Koh Samui and Barcelona are at work?
Yes: from 2:00 PM to 6:00 PM in Koh Samui (9:00 AM to 1:00 PM in Barcelona), the working days (9:00 AM–6:00 PM) overlap.
Until what time in Koh Samui is it still yesterday in Barcelona?
Before 5:00 AM in Koh Samui, the date in Barcelona has not changed yet. From 7:00 PM in Barcelona, it is already the next day in Koh Samui.
Does the time difference between Koh Samui and Barcelona change?
Yes. The clocks change only in Barcelona. From October 25, 2026, Barcelona will be 6 hours behind Koh Samui.
