Chiang Mai to Petropolis: time difference
Petropolis is 10 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 04:51 4:51 AM Petropolis 18:51 6:51 PM You –:–
04:51 4:51 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 17:58
18:51 6:51 PM
Brasilia Standard Time · UTC-3
☀️ 05:17 · 🌙 17:59
·
−10 h
Petropolis is 10 h behind Chiang Mai.
When you, Chiang Mai and Petropolis 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
🇧🇷 Petropolis
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 | 🇧🇷 Petropolis |
|---|---|---|
| Local time | 04:51 | 18:51 |
| Local date | Wednesday, October 21, 2026 | Tuesday, October 20, 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 | 05:17 |
| Sunset | 17:58 | 17:59 |
| Daylight | 11 h 38 min | 12 h 42 min |
| People on this clock | 127,240 | 278,881 |
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 Petropolis: common questions
What is the time difference between Chiang Mai and Petropolis?
Petropolis is 10 hours behind: it uses UTC−3, while Chiang Mai is on UTC+7.
What time is it in Petropolis at the start of the working day in Chiang Mai?
The working day in Chiang Mai starts at 9:00 AM; in Petropolis it is 11:00 PM (the previous day) at that moment.
If it is 6:00 PM in Chiang Mai, what time is it in Petropolis?
At 6:00 PM in Chiang Mai, clocks in Petropolis show 8:00 AM.
Is there a time when both Chiang Mai and Petropolis 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 Petropolis; the day in Petropolis starts at 7:00 PM in Chiang Mai time.
When is it still the previous day in Petropolis?
Until 10:00 AM in Chiang Mai it is still the previous day in Petropolis. The other way round, from 2:00 PM in Petropolis it is already the next day in Chiang Mai.
Is the time difference between Chiang Mai and Petropolis the same all year?
Yes. Neither Chiang Mai nor Petropolis switches to summer time, so the gap is always 10 hours.
