Chiang Mai to Boa Vista: time difference
Boa Vista is 11 h behind Chiang Mai. 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.
Chiang Mai 20:21 8:21 PM Boa Vista 09:21 9:21 AM You –:–
20:21 8:21 PM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 18:00
09:21 9:21 AM
Amazon Standard Time · UTC-4
☀️ 05:47 · 🌙 17:50
·
−11 h
Boa Vista is 11 h behind Chiang Mai.
When you, Chiang Mai and Boa Vista are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇭 Chiang Mai
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
🇧🇷 Boa Vista
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 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇧🇷 Boa Vista |
|---|---|---|
| Local time | 20:21 | 09:21 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Indochina Time | Amazon Standard Time |
| UTC offset | UTC+7 | UTC-4 |
| Offset from Chiang Mai | — | −11 h |
| IANA zone | Asia/Bangkok | America/Boa Vista |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:20 | 05:47 |
| Sunset | 18:00 | 17:50 |
| Daylight | 11 h 40 min | 12 h 3 min |
| People on this clock | 127,240 | 413,486 |
Compare Chiang Mai with another city
More comparisons with Chiang Mai: the time zones next to it and the far side of the clock.
Big time differences
Chiang Mai and Boa Vista: common questions
How many hours behind Chiang Mai is Boa Vista?
The clocks in Boa Vista are 11 hours behind those in Chiang Mai (UTC−4 and UTC+7).
If it is 9:00 AM in Chiang Mai, what time is it in Boa Vista?
At 9:00 AM in Chiang Mai, clocks in Boa Vista show 10:00 PM (the previous day).
What time is it in Boa Vista when it is 6:00 PM in Chiang Mai?
When it is 6:00 PM in Chiang Mai, it is 7:00 AM in Boa Vista.
When do working hours in Chiang Mai and in Boa Vista overlap?
They don't: there are no shared working hours. The start of the day in Chiang Mai (9:00 AM) is 10:00 PM (the previous day) in Boa Vista, and the start of the day in Boa Vista is 8:00 PM in Chiang Mai.
When does the date change in Boa Vista compared with Chiang Mai?
The new day starts in Boa Vista later: until 11:00 AM in Chiang Mai, it is still the previous day there. From 1:00 PM in Boa Vista, Chiang Mai is already on the next day.
Is the time difference between Chiang Mai and Boa Vista the same all year?
Yes. Neither Chiang Mai nor Boa Vista switches to summer time, so the gap is always 11 hours.
