Serra to Chiang Mai: time difference
Chiang Mai is 10 h ahead of Serra. 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.
Serra 03:27 3:27 AM Chiang Mai 13:27 1:27 PM You –:–
03:27 3:27 AM
Brasilia Standard Time · UTC-3
☀️ 05:09 · 🌙 17:45
13:27 1:27 PM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
·
+10 h
Chiang Mai is 10 h ahead of Serra.
When you, Serra 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
🇧🇷 Serra
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 | 🇧🇷 Serra | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 03:27 | 13:27 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Brasilia Standard Time | Indochina Time |
| UTC offset | UTC-3 | UTC+7 |
| Offset from Serra | — | +10 h |
| IANA zone | America/Sao Paulo | Asia/Bangkok |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:09 | 06:19 |
| Sunset | 17:45 | 18:01 |
| Daylight | 12 h 36 min | 11 h 41 min |
| People on this clock | 520,653 | 127,240 |
Compare Serra with another city
More comparisons with Serra: the time zones next to it and the far side of the clock.
Nearby time zones
Serra and Chiang Mai: common questions
How far ahead of Serra is Chiang Mai?
Chiang Mai is 10 hours ahead of Serra: UTC+7 against UTC−3.
What time is it in Chiang Mai at the start of the working day in Serra?
The working day in Serra starts at 9:00 AM; in Chiang Mai it is 7:00 PM at that moment.
If it is 6:00 PM in Serra, what time is it in Chiang Mai?
At 6:00 PM in Serra, clocks in Chiang Mai show 4:00 AM (the next day).
When is a good time to call Chiang Mai from Serra?
Working hours (9:00 AM–6:00 PM) in Serra and in Chiang Mai do not overlap. At 9:00 AM in Serra it is 7:00 PM in Chiang Mai; when the working day starts in Chiang Mai, it is 11:00 PM (the previous day) in Serra.
When does the date change in Chiang Mai compared with Serra?
The new day starts in Chiang Mai earlier: at 2:00 PM in Serra it is already midnight there. Until 10:00 AM in Chiang Mai, Serra is still on the previous day.
Is the time difference between Serra and Chiang Mai the same all year?
Yes. Neither Serra nor Chiang Mai switches to summer time, so the gap is always 10 hours.
