Rio das Ostras to Chiang Mai: time difference
Chiang Mai is 10 h ahead of Rio das Ostras. 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.
Rio das Ostras 00:27 12:27 AM Chiang Mai 10:27 10:27 AM You –:–
00:27 12:27 AM
Brasilia Standard Time · UTC-3
☀️ 05:13 · 🌙 17:54
10:27 10:27 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 18:00
·
+10 h
Chiang Mai is 10 h ahead of Rio das Ostras.
When you, Rio das Ostras 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
🇧🇷 Rio das Ostras
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
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 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Rio das Ostras | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 00:27 | 10:27 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Brasilia Standard Time | Indochina Time |
| UTC offset | UTC-3 | UTC+7 |
| Offset from Rio das Ostras | — | +10 h |
| IANA zone | America/Sao Paulo | Asia/Bangkok |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:13 | 06:20 |
| Sunset | 17:54 | 18:00 |
| Daylight | 12 h 41 min | 11 h 40 min |
| People on this clock | 156,491 | 127,240 |
Compare Rio das Ostras with another city
More comparisons with Rio das Ostras: the time zones next to it and the far side of the clock.
Nearby time zones
Rio das Ostras and Chiang Mai: common questions
How many hours ahead of Rio das Ostras is Chiang Mai?
The clocks in Chiang Mai are 10 hours ahead of those in Rio das Ostras (UTC+7 and UTC−3).
What time is it in Chiang Mai at the start of the working day in Rio das Ostras?
The working day in Rio das Ostras starts at 9:00 AM; in Chiang Mai it is 7:00 PM at that moment.
What time is it in Chiang Mai at the end of the working day in Rio das Ostras?
The working day in Rio das Ostras ends at 6:00 PM; in Chiang Mai it is 4:00 AM (the next day) at that moment.
Is there a time when both Rio das Ostras and Chiang Mai are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Rio das Ostras at 9:00 AM, it is 7:00 PM in Chiang Mai; the day in Chiang Mai starts at 11:00 PM (the previous day) in Rio das Ostras time.
From what time in Rio das Ostras is it tomorrow in Chiang Mai?
Once it is 2:00 PM in Rio das Ostras, the date in Chiang Mai has already changed. Until 10:00 AM in Chiang Mai, it is still the previous day in Rio das Ostras.
Does the time gap between Rio das Ostras and Chiang Mai change during the year?
No, the clocks change neither in Rio das Ostras nor in Chiang Mai, so the gap is 10 hours all year round.
