Guyancourt to Chiang Mai: time difference
Chiang Mai is 5 h ahead of Guyancourt. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Guyancourt 02:09 2:09 AM Chiang Mai 07:09 7:09 AM You –:–
02:09 2:09 AM
Central European Summer Time · UTC+2
☀️ 08:21 · 🌙 18:53
07:09 7:09 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 17:58
·
+5 h
Chiang Mai is 5 h ahead of Guyancourt.
When you, Guyancourt and Chiang Mai are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇫🇷 Guyancourt
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
🇹🇭 Chiang Mai
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 1 1 AM 2 2 AM 3 3 AM 4 4 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇫🇷 Guyancourt | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 02:09 | 07:09 |
| Local date | Wednesday, October 21, 2026 | Wednesday, October 21, 2026 |
| Time zone | Central European Summer Time | Indochina Time |
| UTC offset | UTC+2 | UTC+7 |
| Offset from Guyancourt | — | +5 h |
| IANA zone | Europe/Paris | Asia/Bangkok |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 08:21 | 06:20 |
| Sunset | 18:53 | 17:58 |
| Daylight | 10 h 32 min | 11 h 38 min |
| People on this clock | 29,406 | 127,240 |
Compare Guyancourt with another city
More comparisons with Guyancourt: the time zones next to it and the far side of the clock.
Big time differences
Guyancourt and Chiang Mai: common questions
How far ahead of Guyancourt is Chiang Mai?
Chiang Mai is 5 hours ahead of Guyancourt: UTC+7 against UTC+2.
What time is it in Chiang Mai when it is 9:00 AM in Guyancourt?
When it is 9:00 AM in Guyancourt, it is 2:00 PM in Chiang Mai.
If it is 6:00 PM in Guyancourt, what time is it in Chiang Mai?
At 6:00 PM in Guyancourt, clocks in Chiang Mai show 11:00 PM.
When is a good time to call Chiang Mai from Guyancourt?
Between 9:00 AM and 1:00 PM in Guyancourt – that is 2:00 PM to 6:00 PM in Chiang Mai – both places are within working hours (9:00 AM–6:00 PM).
From what time in Guyancourt is it tomorrow in Chiang Mai?
Once it is 7:00 PM in Guyancourt, the date in Chiang Mai has already changed. Until 5:00 AM in Chiang Mai, it is still the previous day in Guyancourt.
Does the time gap between Guyancourt and Chiang Mai change during the year?
Yes – daylight saving time is used in Guyancourt but not in Chiang Mai. From October 25, 2026, Chiang Mai will be 6 hours ahead of Guyancourt.
