Puerto Rico to Chiang Mai: time difference
Chiang Mai is 11 h ahead of Puerto Rico. 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.
Puerto Rico 21:47 9:47 PM Chiang Mai 08:47 8:47 AM You –:–
21:47 9:47 PM
Atlantic Standard Time · UTC-4
☀️ 06:17 · 🌙 18:08
08:47 8:47 AM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:07
·
+11 h
Chiang Mai is 11 h ahead of Puerto Rico.
When you, Puerto Rico 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
🇵🇷 Puerto Rico
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
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 10 10 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇷 Puerto Rico | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 21:47 | 08:47 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Atlantic Standard Time | Indochina Time |
| UTC offset | UTC-4 | UTC+7 |
| Offset from Puerto Rico | — | +11 h |
| IANA zone | America/Puerto Rico | Asia/Bangkok |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:17 | 06:17 |
| Sunset | 18:08 | 18:07 |
| Daylight | 11 h 50 min | 11 h 49 min |
| People on this clock | 3,285,874 | 127,240 |
Compare Puerto Rico with another city
More comparisons with Puerto Rico: the time zones next to it and the far side of the clock.
Nearby time zones
Puerto Rico and Chiang Mai: common questions
What is the time difference between Puerto Rico and Chiang Mai?
Chiang Mai is 11 hours ahead: it uses UTC+7, while Puerto Rico is on UTC−4.
What time is it in Chiang Mai when it is 9:00 AM in Puerto Rico?
When it is 9:00 AM in Puerto Rico, it is 8:00 PM in Chiang Mai.
What time is it in Chiang Mai when it is 6:00 PM in Puerto Rico?
When it is 6:00 PM in Puerto Rico, it is 5:00 AM (the next day) in Chiang Mai.
When do working hours in Puerto Rico and in Chiang Mai overlap?
They don't: there are no shared working hours. The start of the day in Puerto Rico (9:00 AM) is 8:00 PM in Chiang Mai, and the start of the day in Chiang Mai is 10:00 PM (the previous day) in Puerto Rico.
When is it already the next day in Chiang Mai?
From 1:00 PM in Puerto Rico it is already the next day in Chiang Mai. The other way round, until 11:00 AM in Chiang Mai it is still the previous day in Puerto Rico.
Is the time difference between Puerto Rico and Chiang Mai the same all year?
Yes. Neither Puerto Rico nor Chiang Mai switches to summer time, so the gap is always 11 hours.
