Chiang Mai to Porto Velho: time difference
Porto Velho is 11 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 02:30 2:30 AM Porto Velho 15:30 3:30 PM You –:–
02:30 2:30 AM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
15:30 3:30 PM
Amazon Standard Time · UTC-4
☀️ 05:53 · 🌙 18:11
·
−11 h
Porto Velho is 11 h behind Chiang Mai.
When you, Chiang Mai and Porto Velho 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
🇧🇷 Porto Velho
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 10 10 AM 11 11 AM 12 12 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇧🇷 Porto Velho |
|---|---|---|
| Local time | 02:30 | 15:30 |
| Local date | Saturday, October 17, 2026 | Friday, October 16, 2026 |
| Time zone | Indochina Time | Amazon Standard Time |
| UTC offset | UTC+7 | UTC-4 |
| Offset from Chiang Mai | — | −11 h |
| IANA zone | Asia/Bangkok | America/Porto Velho |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:19 | 05:53 |
| Sunset | 18:01 | 18:11 |
| Daylight | 11 h 42 min | 12 h 18 min |
| People on this clock | 127,240 | 460,434 |
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 Porto Velho: common questions
How many hours behind Chiang Mai is Porto Velho?
The clocks in Porto Velho are 11 hours behind those in Chiang Mai (UTC−4 and UTC+7).
What time is it in Porto Velho when it is 9:00 AM in Chiang Mai?
When it is 9:00 AM in Chiang Mai, it is 10:00 PM (the previous day) in Porto Velho.
If it is 6:00 PM in Chiang Mai, what time is it in Porto Velho?
At 6:00 PM in Chiang Mai, clocks in Porto Velho show 7:00 AM.
Is there a time when both Chiang Mai and Porto Velho 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 10:00 PM (the previous day) in Porto Velho; the day in Porto Velho starts at 8:00 PM in Chiang Mai time.
When is it still the previous day in Porto Velho?
Until 11:00 AM in Chiang Mai it is still the previous day in Porto Velho. The other way round, from 1:00 PM in Porto Velho it is already the next day in Chiang Mai.
Does the time gap between Chiang Mai and Porto Velho change during the year?
No, the clocks change neither in Chiang Mai nor in Porto Velho, so the gap is 11 hours all year round.
