Teresina to Chiang Mai: time difference
Chiang Mai is 10 h ahead of Teresina. 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.
Teresina 05:46 5:46 AM Chiang Mai 15:46 3:46 PM You –:–
05:46 5:46 AM
Brasilia Standard Time · UTC-3
☀️ 05:33 · 🌙 17:45
15:46 3:46 PM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:07
·
+10 h
Chiang Mai is 10 h ahead of Teresina.
When you, Teresina 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
🇧🇷 Teresina
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 | 🇧🇷 Teresina | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 05:46 | 15:46 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Brasilia Standard Time | Indochina Time |
| UTC offset | UTC-3 | UTC+7 |
| Offset from Teresina | — | +10 h |
| IANA zone | America/Fortaleza | Asia/Bangkok |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:33 | 06:17 |
| Sunset | 17:45 | 18:07 |
| Daylight | 12 h 11 min | 11 h 49 min |
| People on this clock | 866,300 | 127,240 |
Compare Teresina with another city
More comparisons with Teresina: the time zones next to it and the far side of the clock.
Nearby time zones
Teresina and Chiang Mai: common questions
How far ahead of Teresina is Chiang Mai?
Chiang Mai is 10 hours ahead of Teresina: UTC+7 against UTC−3.
What time is it in Chiang Mai at the start of the working day in Teresina?
The working day in Teresina starts at 9:00 AM; in Chiang Mai it is 7:00 PM at that moment.
If it is 6:00 PM in Teresina, what time is it in Chiang Mai?
At 6:00 PM in Teresina, clocks in Chiang Mai show 4:00 AM (the next day).
When do working hours in Teresina and in Chiang Mai overlap?
They don't: there are no shared working hours. The start of the day in Teresina (9:00 AM) is 7:00 PM in Chiang Mai, and the start of the day in Chiang Mai is 11:00 PM (the previous day) in Teresina.
When does the date change in Chiang Mai compared with Teresina?
The new day starts in Chiang Mai earlier: at 2:00 PM in Teresina it is already midnight there. Until 10:00 AM in Chiang Mai, Teresina is still on the previous day.
Does the time difference between Teresina and Chiang Mai change?
No. Neither place uses daylight saving time, so the difference stays 10 hours all year.
