Chiang Mai to Rio das Ostras: time difference
Rio das Ostras is 10 h behind Chiang Mai. Live clocks for both, the working hours they share, and how each one sits against your own time.
−10 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Chiang Mai 14:52 2:52 PM Rio das Ostras 04:52 4:52 AM You –:–
14:52 2:52 PM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 18:00
04:52 4:52 AM
Brasilia Standard Time · UTC-3
☀️ 05:13 · 🌙 17:54
·
−10 h
Rio das Ostras is 10 h behind Chiang Mai.
When you, Chiang Mai and Rio das Ostras 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
🇧🇷 Rio das Ostras
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 13 1 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇧🇷 Rio das Ostras |
|---|---|---|
| Local time | 14:52 | 04:52 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Indochina Time | Brasilia Standard Time |
| UTC offset | UTC+7 | UTC-3 |
| Offset from Chiang Mai | — | −10 h |
| IANA zone | Asia/Bangkok | America/Sao Paulo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:20 | 05:13 |
| Sunset | 18:00 | 17:54 |
| Daylight | 11 h 40 min | 12 h 41 min |
| People on this clock | 127,240 | 156,491 |
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 Rio das Ostras: common questions
How far behind Chiang Mai is Rio das Ostras?
Rio das Ostras is 10 hours behind Chiang Mai: UTC−3 against UTC+7.
If it is 9:00 AM in Chiang Mai, what time is it in Rio das Ostras?
At 9:00 AM in Chiang Mai, clocks in Rio das Ostras show 11:00 PM (the previous day).
What time is it in Rio das Ostras when it is 6:00 PM in Chiang Mai?
When it is 6:00 PM in Chiang Mai, it is 8:00 AM in Rio das Ostras.
Is there a time when both Chiang Mai and Rio das Ostras are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Chiang Mai at 9:00 AM, it is 11:00 PM (the previous day) in Rio das Ostras; the day in Rio das Ostras starts at 7:00 PM in Chiang Mai time.
When is it still the previous day in Rio das Ostras?
Until 10:00 AM in Chiang Mai it is still the previous day in Rio das Ostras. The other way round, from 2:00 PM in Rio das Ostras it is already the next day in Chiang Mai.
Is the time difference between Chiang Mai and Rio das Ostras the same all year?
Yes. Neither Chiang Mai nor Rio das Ostras switches to summer time, so the gap is always 10 hours.
